31990148974 has 8 divisors (see below), whose sum is σ = 54840255408. Its totient is φ = 13710063840.

The previous prime is 31990148929. The next prime is 31990149019. The reversal of 31990148974 is 47984109913.

It is an interprime number because it is at equal distance from previous prime (31990148929) and next prime (31990149019).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1142505307 + ... + 1142505334.

It is an arithmetic number, because the mean of its divisors is an integer number (6855031926).

Almost surely, 2^31990148974 is an apocalyptic number.

31990148974 is a deficient number, since it is larger than the sum of its proper divisors (22850106434).

31990148974 is a wasteful number, since it uses less digits than its factorization.

31990148974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285010650.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 31990148974 in words is "thirty-one billion, nine hundred ninety million, one hundred forty-eight thousand, nine hundred seventy-four".