31245148 has 24 divisors (see below), whose sum is σ = 61576704. Its totient is φ = 13743600.

The previous prime is 31245121. The next prime is 31245163. The reversal of 31245148 is 84154213.

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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10090 + ... + 12817.

It is an arithmetic number, because the mean of its divisors is an integer number (2565696).

Almost surely, 2^31245148 is an apocalyptic number.

It is an amenable number.

31245148 is a deficient number, since it is larger than the sum of its proper divisors (30331556).

31245148 is a wasteful number, since it uses less digits than its factorization.

31245148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22953 (or 22951 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 31245148 is about 5589.7359508299. The cubic root of 31245148 is about 314.9639599315.

The spelling of 31245148 in words is "thirty-one million, two hundred forty-five thousand, one hundred forty-eight".