31345494 has 16 divisors (see below), whose sum is σ = 62927280. Its totient is φ = 10409120.

The previous prime is 31345477. The next prime is 31345511. The reversal of 31345494 is 49454313.

It is an interprime number because it is at equal distance from previous prime (31345477) and next prime (31345511).

It is a Curzon number.

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, 8097 + ... + 11324.

It is an arithmetic number, because the mean of its divisors is an integer number (3932955).

Almost surely, 2^31345494 is an apocalyptic number.

31345494 is an abundant number, since it is smaller than the sum of its proper divisors (31581786).

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

31345494 is a wasteful number, since it uses less digits than its factorization.

31345494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19695.

The product of its digits is 25920, while the sum is 33.

The square root of 31345494 is about 5598.7046716182. The cubic root of 31345494 is about 315.3007759545.

The spelling of 31345494 in words is "thirty-one million, three hundred forty-five thousand, four hundred ninety-four".