31874148 has 30 divisors (see below), whose sum is σ = 83326166. Its totient is φ = 10624608.

The previous prime is 31874093. The next prime is 31874149. The reversal of 31874148 is 84147813.

It can be written as a sum of positive squares in only one way, i.e., 24681024 + 7193124 = 4968^2 + 2682^2 .

It is a super-2 number, since 2×31874148² = 2031922621451808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (31874149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 48865 + ... + 49512.

Almost surely, 2^31874148 is an apocalyptic number.

It is an amenable number.

31874148 is an abundant number, since it is smaller than the sum of its proper divisors (51452018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31874148 is a wasteful number, since it uses less digits than its factorization.

31874148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98393 (or 98382 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 31874148 is about 5645.7194404256. The cubic root of 31874148 is about 317.0634602456.

The spelling of 31874148 in words is "thirty-one million, eight hundred seventy-four thousand, one hundred forty-eight".