158474631 has 32 divisors (see below), whose sum is σ = 246949888. Its totient is φ = 88529760.

The previous prime is 158474609. The next prime is 158474653. The reversal of 158474631 is 136474851.

It is an interprime number because it is at equal distance from previous prime (158474609) and next prime (158474653).

It is not a de Polignac number, because 158474631 - 2¹⁵ = 158441863 is a prime.

It is a super-2 number, since 2×158474631² = 50228417341172322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 158474631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158474131) 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, 228996 + ... + 229686.

It is an arithmetic number, because the mean of its divisors is an integer number (7717184).

Almost surely, 2^158474631 is an apocalyptic number.

158474631 is a deficient number, since it is larger than the sum of its proper divisors (88475257).

158474631 is a wasteful number, since it uses less digits than its factorization.

158474631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931.

The product of its digits is 80640, while the sum is 39.

The square root of 158474631 is about 12588.6707399948. The cubic root of 158474631 is about 541.1528081186.

The spelling of 158474631 in words is "one hundred fifty-eight million, four hundred seventy-four thousand, six hundred thirty-one".