112657561 has 2 divisors, whose sum is σ = 112657562. Its totient is φ = 112657560.

The previous prime is 112657553. The next prime is 112657577. The reversal of 112657561 is 165756211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84989961 + 27667600 = 9219^2 + 5260^2 .

It is a cyclic number.

It is not a de Polignac number, because 112657561 - 2³ = 112657553 is a prime.

It is not a weakly prime, because it can be changed into another prime (112657541) 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 as a sum of consecutive naturals, namely, 56328780 + 56328781.

It is an arithmetic number, because the mean of its divisors is an integer number (56328781).

Almost surely, 2^112657561 is an apocalyptic number.

It is an amenable number.

112657561 is a deficient number, since it is larger than the sum of its proper divisors (1).

112657561 is an equidigital number, since it uses as much as digits as its factorization.

112657561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 34.

The square root of 112657561 is about 10614.0266157571. The cubic root of 112657561 is about 482.9699552801.

The spelling of 112657561 in words is "one hundred twelve million, six hundred fifty-seven thousand, five hundred sixty-one".