112975991 has 2 divisors, whose sum is σ = 112975992. Its totient is φ = 112975990.

The previous prime is 112975987. The next prime is 112976011. The reversal of 112975991 is 199579211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 112975991 - 2² = 112975987 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112975901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56487995 + 56487996.

It is an arithmetic number, because the mean of its divisors is an integer number (56487996).

Almost surely, 2^112975991 is an apocalyptic number.

112975991 is a deficient number, since it is larger than the sum of its proper divisors (1).

112975991 is an equidigital number, since it uses as much as digits as its factorization.

112975991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51030, while the sum is 44.

The square root of 112975991 is about 10629.0164643771. The cubic root of 112975991 is about 483.4245702781.

The spelling of 112975991 in words is "one hundred twelve million, nine hundred seventy-five thousand, nine hundred ninety-one".