112291631 has 2 divisors, whose sum is σ = 112291632. Its totient is φ = 112291630.

The previous prime is 112291609. The next prime is 112291637. The reversal of 112291631 is 136192211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112291631 is a prime.

It is a super-2 number, since 2×112291631² = 25218820785280322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112291631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112291637) 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, 56145815 + 56145816.

It is an arithmetic number, because the mean of its divisors is an integer number (56145816).

Almost surely, 2^112291631 is an apocalyptic number.

112291631 is a deficient number, since it is larger than the sum of its proper divisors (1).

112291631 is an equidigital number, since it uses as much as digits as its factorization.

112291631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 26.

The square root of 112291631 is about 10596.7745564393. The cubic root of 112291631 is about 482.4464665387.

The spelling of 112291631 in words is "one hundred twelve million, two hundred ninety-one thousand, six hundred thirty-one".