331856051 has 4 divisors (see below), whose sum is σ = 332156400. Its totient is φ = 331555704.

The previous prime is 331856017. The next prime is 331856053. The reversal of 331856051 is 150658133.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 331856051 - 2⁶ = 331855987 is a prime.

It is a super-2 number, since 2×331856051² = 220256877170629202, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331855999 and 331856017.

It is not an unprimeable number, because it can be changed into a prime (331856053) 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 3 ways as a sum of consecutive naturals, for example, 148511 + ... + 150728.

It is an arithmetic number, because the mean of its divisors is an integer number (83039100).

Almost surely, 2^331856051 is an apocalyptic number.

331856051 is a deficient number, since it is larger than the sum of its proper divisors (300349).

331856051 is a wasteful number, since it uses less digits than its factorization.

331856051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300348.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 331856051 is about 18216.9166161565. The cubic root of 331856051 is about 692.3354670867.

The spelling of 331856051 in words is "three hundred thirty-one million, eight hundred fifty-six thousand, fifty-one".