31097604148 has 18 divisors (see below), whose sum is σ = 58929041094. Its totient is φ = 14352740064.

The previous prime is 31097604143. The next prime is 31097604149. The reversal of 31097604148 is 84140679013.

It can be written as a sum of positive squares in 3 ways, for example, as 3021920784 + 28075683364 = 54972^2 + 167558^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31097604143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23000511 + ... + 23001862.

Almost surely, 2^31097604148 is an apocalyptic number.

It is an amenable number.

31097604148 is a deficient number, since it is larger than the sum of its proper divisors (27831436946).

31097604148 is a wasteful number, since it uses less digits than its factorization.

31097604148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46002403 (or 46002388 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 31097604148 in words is "thirty-one billion, ninety-seven million, six hundred four thousand, one hundred forty-eight".