74157031 has 12 divisors (see below), whose sum is σ = 83074680. Its totient is φ = 66087840.

The previous prime is 74157001. The next prime is 74157059. The reversal of 74157031 is 13075147.

It is not a de Polignac number, because 74157031 - 2⁹ = 74156519 is a prime.

It is a super-2 number, since 2×74157031² = 10998530493469922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74157001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2665 + ... + 12466.

It is an arithmetic number, because the mean of its divisors is an integer number (6922890).

Almost surely, 2^74157031 is an apocalyptic number.

74157031 is a deficient number, since it is larger than the sum of its proper divisors (8917649).

74157031 is a wasteful number, since it uses less digits than its factorization.

74157031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15186 (or 15173 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 74157031 is about 8611.4476715591. The cubic root of 74157031 is about 420.1304035740.

The spelling of 74157031 in words is "seventy-four million, one hundred fifty-seven thousand, thirty-one".