331150493 has 2 divisors, whose sum is σ = 331150494. Its totient is φ = 331150492.

The previous prime is 331150489. The next prime is 331150511. The reversal of 331150493 is 394051133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 268075129 + 63075364 = 16373^2 + 7942^2 .

It is a cyclic number.

It is not a de Polignac number, because 331150493 - 2² = 331150489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331150433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165575246 + 165575247.

It is an arithmetic number, because the mean of its divisors is an integer number (165575247).

Almost surely, 2^331150493 is an apocalyptic number.

It is an amenable number.

331150493 is a deficient number, since it is larger than the sum of its proper divisors (1).

331150493 is an equidigital number, since it uses as much as digits as its factorization.

331150493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 331150493 is about 18197.5408503457. The cubic root of 331150493 is about 691.8444616013.

The spelling of 331150493 in words is "three hundred thirty-one million, one hundred fifty thousand, four hundred ninety-three".