331156701 has 8 divisors (see below), whose sum is σ = 490602560. Its totient is φ = 220771116.

The previous prime is 331156687. The next prime is 331156711. The reversal of 331156701 is 107651133.

It is not a de Polignac number, because 331156701 - 2²² = 326962397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 12265063 = 331156701 / (3 + 3 + 1 + 1 + 5 + 6 + 7 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331156711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6132505 + ... + 6132558.

It is an arithmetic number, because the mean of its divisors is an integer number (61325320).

Almost surely, 2^331156701 is an apocalyptic number.

It is an amenable number.

331156701 is a deficient number, since it is larger than the sum of its proper divisors (159445859).

331156701 is a wasteful number, since it uses less digits than its factorization.

331156701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12265072 (or 12265066 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 331156701 is about 18197.7114220443. The cubic root of 331156701 is about 691.8487848558.

The spelling of 331156701 in words is "three hundred thirty-one million, one hundred fifty-six thousand, seven hundred one".