31358995148 has 96 divisors (see below), whose sum is σ = 61111733760. Its totient is φ = 13991201280.

The previous prime is 31358995123. The next prime is 31358995153. The reversal of 31358995148 is 84159985313.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31358995093 and 31358995102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82741223 + ... + 82741601.

It is an arithmetic number, because the mean of its divisors is an integer number (636580560).

Almost surely, 2^31358995148 is an apocalyptic number.

It is an amenable number.

31358995148 is a deficient number, since it is larger than the sum of its proper divisors (29752738612).

31358995148 is a wasteful number, since it uses less digits than its factorization.

31358995148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847 (or 845 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 56.

The spelling of 31358995148 in words is "thirty-one billion, three hundred fifty-eight million, nine hundred ninety-five thousand, one hundred forty-eight".