331100089 has 2 divisors, whose sum is σ = 331100090. Its totient is φ = 331100088.

The previous prime is 331100027. The next prime is 331100117. The reversal of 331100089 is 980001133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 273340089 + 57760000 = 16533^2 + 7600^2 .

It is a cyclic number.

It is not a de Polignac number, because 331100089 - 2²³ = 322711481 is a prime.

It is not a weakly prime, because it can be changed into another prime (331100489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165550044 + 165550045.

It is an arithmetic number, because the mean of its divisors is an integer number (165550045).

Almost surely, 2^331100089 is an apocalyptic number.

It is an amenable number.

331100089 is a deficient number, since it is larger than the sum of its proper divisors (1).

331100089 is an equidigital number, since it uses as much as digits as its factorization.

331100089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 331100089 is about 18196.1558852413. The cubic root of 331100089 is about 691.8093582285.

The spelling of 331100089 in words is "three hundred thirty-one million, one hundred thousand, eighty-nine".