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12202133 = 41297613
BaseRepresentation
bin101110100011…
…000010010101
3211221221011212
4232203002111
511110432013
61113311205
7205500506
oct56430225
924857155
1012202133
116984709
124105505
1326b2cc8
141898bad
1511106a8
hexba3095

12202133 has 4 divisors (see below), whose sum is σ = 12499788. Its totient is φ = 11904480.

The previous prime is 12202129. The next prime is 12202139. The reversal of 12202133 is 33120221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33120221 = 33299949.

It can be written as a sum of positive squares in 2 ways, for example, as 1456849 + 10745284 = 1207^2 + 3278^2 .

It is a cyclic number.

It is not a de Polignac number, because 12202133 - 22 = 12202129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148766 + ... + 148847.

It is an arithmetic number, because the mean of its divisors is an integer number (3124947).

Almost surely, 212202133 is an apocalyptic number.

It is an amenable number.

12202133 is a deficient number, since it is larger than the sum of its proper divisors (297655).

12202133 is an equidigital number, since it uses as much as digits as its factorization.

12202133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297654.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 12202133 is about 3493.1551640315. The cubic root of 12202133 is about 230.2211672204.

Adding to 12202133 its reverse (33120221), we get a palindrome (45322354).

The spelling of 12202133 in words is "twelve million, two hundred two thousand, one hundred thirty-three".

Divisors: 1 41 297613 12202133