31013297 has 8 divisors (see below), whose sum is σ = 35943552. Its totient is φ = 26208000.

The previous prime is 31013293. The next prime is 31013341. The reversal of 31013297 is 79231013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31013297 - 2² = 31013293 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31013293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30704 + ... + 31697.

It is an arithmetic number, because the mean of its divisors is an integer number (4492944).

Almost surely, 2^31013297 is an apocalyptic number.

It is an amenable number.

31013297 is a deficient number, since it is larger than the sum of its proper divisors (4930255).

31013297 is an equidigital number, since it uses as much as digits as its factorization.

31013297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62479.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 31013297 is about 5568.9583406594. The cubic root of 31013297 is about 314.1829738065.

The spelling of 31013297 in words is "thirty-one million, thirteen thousand, two hundred ninety-seven".