31474845 has 48 divisors (see below), whose sum is σ = 57718080. Its totient is φ = 16271424.

The previous prime is 31474829. The next prime is 31474867. The reversal of 31474845 is 54847413.

It is not a de Polignac number, because 31474845 - 2⁴ = 31474829 is a prime.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 379174 + ... + 379256.

It is an arithmetic number, because the mean of its divisors is an integer number (1202460).

Almost surely, 2^31474845 is an apocalyptic number.

It is an amenable number.

31474845 is a deficient number, since it is larger than the sum of its proper divisors (26243235).

31474845 is an equidigital number, since it uses as much as digits as its factorization.

31474845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 144 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 31474845 is about 5610.2446470720. The cubic root of 31474845 is about 315.7338897564.

The spelling of 31474845 in words is "thirty-one million, four hundred seventy-four thousand, eight hundred forty-five".