31995148 has 12 divisors (see below), whose sum is σ = 56244160. Its totient is φ = 15925392.

The previous prime is 31995143. The next prime is 31995151. The reversal of 31995148 is 84159913.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 31995148.

It is not an unprimeable number, because it can be changed into a prime (31995143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17043 + ... + 18826.

Almost surely, 2^31995148 is an apocalyptic number.

It is an amenable number.

31995148 is a deficient number, since it is larger than the sum of its proper divisors (24249012).

31995148 is a wasteful number, since it uses less digits than its factorization.

31995148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36096 (or 36094 counting only the distinct ones).

The product of its digits is 38880, while the sum is 40.

The square root of 31995148 is about 5656.4253729719. The cubic root of 31995148 is about 317.4641636036.

The spelling of 31995148 in words is "thirty-one million, nine hundred ninety-five thousand, one hundred forty-eight".