112431591 has 32 divisors (see below), whose sum is σ = 177094080. Its totient is φ = 70253568.

The previous prime is 112431547. The next prime is 112431593. The reversal of 112431591 is 195134211.

It is a happy number.

It is not a de Polignac number, because 112431591 - 2²¹ = 110334439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112431593) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181915 + ... + 182531.

It is an arithmetic number, because the mean of its divisors is an integer number (5534190).

Almost surely, 2^112431591 is an apocalyptic number.

112431591 is a deficient number, since it is larger than the sum of its proper divisors (64662489).

112431591 is a wasteful number, since it uses less digits than its factorization.

112431591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040 (or 1034 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 112431591 is about 10603.3763962240. The cubic root of 112431591 is about 482.6468233319.

The spelling of 112431591 in words is "one hundred twelve million, four hundred thirty-one thousand, five hundred ninety-one".