31157094 has 16 divisors (see below), whose sum is σ = 62413632. Its totient is φ = 10369128.

The previous prime is 31157083. The next prime is 31157101. The reversal of 31157094 is 49075113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297 + ... + 7899.

It is an arithmetic number, because the mean of its divisors is an integer number (3900852).

Almost surely, 2^31157094 is an apocalyptic number.

31157094 is an abundant number, since it is smaller than the sum of its proper divisors (31256538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31157094 is a wasteful number, since it uses less digits than its factorization.

31157094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8291.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 31157094 is about 5581.8539930743. The cubic root of 31157094 is about 314.6678080272.

The spelling of 31157094 in words is "thirty-one million, one hundred fifty-seven thousand, ninety-four".