320074145 has 16 divisors (see below), whose sum is σ = 389817792. Its totient is φ = 252258240.

The previous prime is 320074127. The next prime is 320074159. The reversal of 320074145 is 541470023.

It is not a de Polignac number, because 320074145 - 2¹⁰ = 320073121 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182975 + ... + 184715.

It is an arithmetic number, because the mean of its divisors is an integer number (24363612).

Almost surely, 2^320074145 is an apocalyptic number.

It is an amenable number.

320074145 is a deficient number, since it is larger than the sum of its proper divisors (69743647).

320074145 is a wasteful number, since it uses less digits than its factorization.

320074145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 320074145 is about 17890.6161157183. The cubic root of 320074145 is about 684.0432021605.

The spelling of 320074145 in words is "three hundred twenty million, seventy-four thousand, one hundred forty-five".