320457001 has 4 divisors (see below), whose sum is σ = 320706900. Its totient is φ = 320207104.

The previous prime is 320456993. The next prime is 320457019. The reversal of 320457001 is 100754023.

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

It can be written as a sum of positive squares in 2 ways, for example, as 291555625 + 28901376 = 17075^2 + 5376^2 .

It is a cyclic number.

It is not a de Polignac number, because 320457001 - 2³ = 320456993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320457041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123016 + ... + 125593.

It is an arithmetic number, because the mean of its divisors is an integer number (80176725).

Almost surely, 2^320457001 is an apocalyptic number.

It is an amenable number.

320457001 is a deficient number, since it is larger than the sum of its proper divisors (249899).

320457001 is a wasteful number, since it uses less digits than its factorization.

320457001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249898.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 320457001 is about 17901.3128289520. The cubic root of 320457001 is about 684.3158324223.

The spelling of 320457001 in words is "three hundred twenty million, four hundred fifty-seven thousand, one".