320162057 has 4 divisors (see below), whose sum is σ = 320313600. Its totient is φ = 320010516.

The previous prime is 320162053. The next prime is 320162069. The reversal of 320162057 is 750261023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 320162057 - 2² = 320162053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320162053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72557 + ... + 76842.

It is an arithmetic number, because the mean of its divisors is an integer number (80078400).

Almost surely, 2^320162057 is an apocalyptic number.

It is an amenable number.

320162057 is a deficient number, since it is larger than the sum of its proper divisors (151543).

320162057 is a wasteful number, since it uses less digits than its factorization.

320162057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151542.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 320162057 is about 17893.0728775132. The cubic root of 320162057 is about 684.1058231731.

The spelling of 320162057 in words is "three hundred twenty million, one hundred sixty-two thousand, fifty-seven".