320354051 has 4 divisors (see below), whose sum is σ = 334282512. Its totient is φ = 306425592.

The previous prime is 320353997. The next prime is 320354077. The reversal of 320354051 is 150453023.

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 320354051 - 2¹⁰ = 320353027 is a prime.

It is a super-2 number, since 2×320354051² = 205253435984221202, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 13928437 = 320354051 / (3 + 2 + 0 + 3 + 5 + 4 + 0 + 5 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320354351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6964196 + ... + 6964241.

It is an arithmetic number, because the mean of its divisors is an integer number (83570628).

Almost surely, 2^320354051 is an apocalyptic number.

320354051 is a deficient number, since it is larger than the sum of its proper divisors (13928461).

320354051 is a wasteful number, since it uses less digits than its factorization.

320354051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13928460.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 320354051 is about 17898.4371105412. The cubic root of 320354051 is about 684.2425434835.

The spelling of 320354051 in words is "three hundred twenty million, three hundred fifty-four thousand, fifty-one".