331083157 has 2 divisors, whose sum is σ = 331083158. Its totient is φ = 331083156.

The previous prime is 331083121. The next prime is 331083191. The reversal of 331083157 is 751380133.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 328551876 + 2531281 = 18126^2 + 1591^2 .

It is a cyclic number.

It is not a de Polignac number, because 331083157 - 2¹⁹ = 330558869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331083257) 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, 165541578 + 165541579.

It is an arithmetic number, because the mean of its divisors is an integer number (165541579).

Almost surely, 2^331083157 is an apocalyptic number.

It is an amenable number.

331083157 is a deficient number, since it is larger than the sum of its proper divisors (1).

331083157 is an equidigital number, since it uses as much as digits as its factorization.

331083157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 331083157 is about 18195.6906161871. The cubic root of 331083157 is about 691.7975653033.

The spelling of 331083157 in words is "three hundred thirty-one million, eighty-three thousand, one hundred fifty-seven".