331100149 has 2 divisors, whose sum is σ = 331100150. Its totient is φ = 331100148.

The previous prime is 331100117. The next prime is 331100167. The reversal of 331100149 is 941001133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312653124 + 18447025 = 17682^2 + 4295^2 .

It is a cyclic number.

It is not a de Polignac number, because 331100149 - 2⁵ = 331100117 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331160149) 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 as a sum of consecutive naturals, namely, 165550074 + 165550075.

It is an arithmetic number, because the mean of its divisors is an integer number (165550075).

Almost surely, 2^331100149 is an apocalyptic number.

It is an amenable number.

331100149 is a deficient number, since it is larger than the sum of its proper divisors (1).

331100149 is an equidigital number, since it uses as much as digits as its factorization.

331100149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 331100149 is about 18196.1575339411. The cubic root of 331100149 is about 691.8094000170.

The spelling of 331100149 in words is "three hundred thirty-one million, one hundred thousand, one hundred forty-nine".