31314745 has 32 divisors (see below), whose sum is σ = 47232000. Its totient is φ = 19362240.

The previous prime is 31314713. The next prime is 31314757. The reversal of 31314745 is 54741313.

It is not a de Polignac number, because 31314745 - 2⁵ = 31314713 is a prime.

It is a super-2 number, since 2×31314745² = 1961226508830050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62506 + ... + 63004.

It is an arithmetic number, because the mean of its divisors is an integer number (1476000).

Almost surely, 2^31314745 is an apocalyptic number.

31314745 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31314745 is a deficient number, since it is larger than the sum of its proper divisors (15917255).

31314745 is a wasteful number, since it uses less digits than its factorization.

31314745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685.

The product of its digits is 5040, while the sum is 28.

The square root of 31314745 is about 5595.9579162106. The cubic root of 31314745 is about 315.1976419866.

The spelling of 31314745 in words is "thirty-one million, three hundred fourteen thousand, seven hundred forty-five".