31048956 has 18 divisors (see below), whose sum is σ = 78484952. Its totient is φ = 10349640.

The previous prime is 31048943. The next prime is 31048961. The reversal of 31048956 is 65984013.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 862471 = 31048956 / (3 + 1 + 0 + 4 + 8 + 9 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 31048956.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 431200 + ... + 431271.

Almost surely, 2^31048956 is an apocalyptic number.

31048956 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

31048956 is an abundant number, since it is smaller than the sum of its proper divisors (47435996).

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

31048956 is a wasteful number, since it uses less digits than its factorization.

31048956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862481 (or 862476 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 31048956 is about 5572.1590070636. The cubic root of 31048956 is about 314.3033432457.

The spelling of 31048956 in words is "thirty-one million, forty-eight thousand, nine hundred fifty-six".