31263148 has 12 divisors (see below), whose sum is σ = 62526352. Its totient is φ = 13398480.

The previous prime is 31263109. The next prime is 31263173. The reversal of 31263148 is 84136213.

31263148 is an admirable number.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 1116541 = 31263148 / (3 + 1 + 2 + 6 + 3 + 1 + 4 + 8).

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 3 ways as a sum of consecutive naturals, for example, 558243 + ... + 558298.

Almost surely, 2^31263148 is an apocalyptic number.

It is an amenable number.

31263148 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31263148 is a wasteful number, since it uses less digits than its factorization.

31263148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116552 (or 1116550 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 31263148 is about 5591.3458129506. The cubic root of 31263148 is about 315.0244307918.

The spelling of 31263148 in words is "thirty-one million, two hundred sixty-three thousand, one hundred forty-eight".