31767232148 has 6 divisors (see below), whose sum is σ = 55592656266. Its totient is φ = 15883616072.

The previous prime is 31767232139. The next prime is 31767232169. The reversal of 31767232148 is 84123276713.

It can be written as a sum of positive squares in only one way, i.e., 29354654224 + 2412577924 = 171332^2 + 49118^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31767232099 and 31767232108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3970904015 + ... + 3970904022.

It is an arithmetic number, because the mean of its divisors is an integer number (9265442711).

Almost surely, 2^31767232148 is an apocalyptic number.

It is an amenable number.

31767232148 is a deficient number, since it is larger than the sum of its proper divisors (23825424118).

31767232148 is a wasteful number, since it uses less digits than its factorization.

31767232148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7941808041 (or 7941808039 counting only the distinct ones).

The product of its digits is 338688, while the sum is 44.

The spelling of 31767232148 in words is "thirty-one billion, seven hundred sixty-seven million, two hundred thirty-two thousand, one hundred forty-eight".