112656521 has 2 divisors, whose sum is σ = 112656522. Its totient is φ = 112656520.

The previous prime is 112656499. The next prime is 112656611. The reversal of 112656521 is 125656211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94848121 + 17808400 = 9739^2 + 4220^2 .

It is a cyclic number.

It is not a de Polignac number, because 112656521 - 2¹⁰ = 112655497 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (112656121) 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 as a sum of consecutive naturals, namely, 56328260 + 56328261.

It is an arithmetic number, because the mean of its divisors is an integer number (56328261).

Almost surely, 2^112656521 is an apocalyptic number.

It is an amenable number.

112656521 is a deficient number, since it is larger than the sum of its proper divisors (1).

112656521 is an equidigital number, since it uses as much as digits as its factorization.

112656521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 29.

The square root of 112656521 is about 10613.9776238694. The cubic root of 112656521 is about 482.9684690940.

The spelling of 112656521 in words is "one hundred twelve million, six hundred fifty-six thousand, five hundred twenty-one".