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12164131 = 71737733
BaseRepresentation
bin101110011001…
…110000100011
3211220000001101
4232121300203
511103223011
61112415231
7205251640
oct56316043
924800041
1012164131
116959101
1240a7517
13269b915
141888dc7
1511042c1
hexb99c23

12164131 has 4 divisors (see below), whose sum is σ = 13901872. Its totient is φ = 10426392.

The previous prime is 12164101. The next prime is 12164147. The reversal of 12164131 is 13146121.

12164131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12164131 is a prime.

It is a super-2 number, since 2×121641312 = 295932165970322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12164099 and 12164108.

It is not an unprimeable number, because it can be changed into a prime (12164101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 868860 + ... + 868873.

It is an arithmetic number, because the mean of its divisors is an integer number (3475468).

Almost surely, 212164131 is an apocalyptic number.

12164131 is a deficient number, since it is larger than the sum of its proper divisors (1737741).

12164131 is an equidigital number, since it uses as much as digits as its factorization.

12164131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737740.

The product of its digits is 144, while the sum is 19.

The square root of 12164131 is about 3487.7114272829. The cubic root of 12164131 is about 229.9819204440.

The spelling of 12164131 in words is "twelve million, one hundred sixty-four thousand, one hundred thirty-one".

Divisors: 1 7 1737733 12164131