31452057 has 80 divisors (see below), whose sum is σ = 61471872. Its totient is φ = 15552000.

The previous prime is 31452041. The next prime is 31452061. The reversal of 31452057 is 75025413.

It is a happy number.

It is not a de Polignac number, because 31452057 - 2⁴ = 31452041 is a prime.

It is a super-3 number, since 3×31452057³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 31452057.

It is not an unprimeable number, because it can be changed into a prime (31452007) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 125182 + ... + 125432.

Almost surely, 2^31452057 is an apocalyptic number.

It is an amenable number.

31452057 is a deficient number, since it is larger than the sum of its proper divisors (30019815).

31452057 is a wasteful number, since it uses less digits than its factorization.

31452057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 31452057 is about 5608.2133518617. The cubic root of 31452057 is about 315.6576735381.

The spelling of 31452057 in words is "thirty-one million, four hundred fifty-two thousand, fifty-seven".