31144088 has 24 divisors (see below), whose sum is σ = 60354540. Its totient is φ = 15066000.

The previous prime is 31144049. The next prime is 31144103. The reversal of 31144088 is 88044113.

It is a self number, because there is not a number n which added to its sum of digits gives 31144088.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5663 + ... + 9713.

Almost surely, 2^31144088 is an apocalyptic number.

It is an amenable number.

31144088 is a deficient number, since it is larger than the sum of its proper divisors (29210452).

31144088 is a wasteful number, since it uses less digits than its factorization.

31144088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4119 (or 4084 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 31144088 is about 5580.6888463701. The cubic root of 31144088 is about 314.6240176884.

The spelling of 31144088 in words is "thirty-one million, one hundred forty-four thousand, eighty-eight".