31041087 has 32 divisors (see below), whose sum is σ = 52254720. Its totient is φ = 15921120.

The previous prime is 31041071. The next prime is 31041089. The reversal of 31041087 is 78014013.

It is not a de Polignac number, because 31041087 - 2⁴ = 31041071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31041089) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18364 + ... + 19982.

It is an arithmetic number, because the mean of its divisors is an integer number (1632960).

Almost surely, 2^31041087 is an apocalyptic number.

31041087 is a deficient number, since it is larger than the sum of its proper divisors (21213633).

31041087 is a wasteful number, since it uses less digits than its factorization.

31041087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 31041087 is about 5571.4528625844. The cubic root of 31041087 is about 314.2767888158.

The spelling of 31041087 in words is "thirty-one million, forty-one thousand, eighty-seven".