31488045 has 8 divisors (see below), whose sum is σ = 50380896. Its totient is φ = 16793616.

The previous prime is 31488031. The next prime is 31488053. The reversal of 31488045 is 54088413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31488045 - 2⁵ = 31488013 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 31487997 and 31488015.

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, 1049587 + ... + 1049616.

It is an arithmetic number, because the mean of its divisors is an integer number (6297612).

Almost surely, 2^31488045 is an apocalyptic number.

It is an amenable number.

31488045 is a deficient number, since it is larger than the sum of its proper divisors (18892851).

31488045 is a wasteful number, since it uses less digits than its factorization.

31488045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099211.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 31488045 is about 5611.4209430411. The cubic root of 31488045 is about 315.7780213464.

The spelling of 31488045 in words is "thirty-one million, four hundred eighty-eight thousand, forty-five".