331100090 has 16 divisors (see below), whose sum is σ = 596582280. Its totient is φ = 132306240.

The previous prime is 331100089. The next prime is 331100117. The reversal of 331100090 is 90001133.

It can be written as a sum of positive squares in 4 ways, for example, as 300086329 + 31013761 = 17323^2 + 5569^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6005 + ... + 26424.

Almost surely, 2^331100090 is an apocalyptic number.

331100090 is a deficient number, since it is larger than the sum of its proper divisors (265482190).

331100090 is a wasteful number, since it uses less digits than its factorization.

331100090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33457.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 331100090 is about 18196.1559127196. The cubic root of 331100090 is about 691.8093589250.

The spelling of 331100090 in words is "three hundred thirty-one million, one hundred thousand, ninety".