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12145633 = 172331063
BaseRepresentation
bin101110010101…
…001111100001
3211212001200021
4232111033201
511102130013
61112153441
7205144003
oct56251741
924761607
1012145633
116946215
124098881
132693386
141882373
1510eda8d
hexb953e1

12145633 has 8 divisors (see below), whose sum is σ = 13419648. Its totient is φ = 10933824.

The previous prime is 12145607. The next prime is 12145669. The reversal of 12145633 is 33654121.

12145633 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12145633 - 213 = 12137441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12145598 and 12145607.

It is not an unprimeable number, because it can be changed into a prime (12145673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15141 + ... + 15922.

It is an arithmetic number, because the mean of its divisors is an integer number (1677456).

Almost surely, 212145633 is an apocalyptic number.

It is an amenable number.

12145633 is a deficient number, since it is larger than the sum of its proper divisors (1274015).

12145633 is a wasteful number, since it uses less digits than its factorization.

12145633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31103.

The product of its digits is 2160, while the sum is 25.

The square root of 12145633 is about 3485.0585360938. The cubic root of 12145633 is about 229.8652834275.

Adding to 12145633 its reverse (33654121), we get a palindrome (45799754).

It can be divided in two parts, 121 and 45633, that added together give a palindrome (45754).

The spelling of 12145633 in words is "twelve million, one hundred forty-five thousand, six hundred thirty-three".

Divisors: 1 17 23 391 31063 528071 714449 12145633