320254931 has 2 divisors, whose sum is σ = 320254932. Its totient is φ = 320254930.

The previous prime is 320254871. The next prime is 320254951. The reversal of 320254931 is 139452023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320254931 - 2⁶ = 320254867 is a prime.

It is a super-2 number, since 2×320254931² = 205126441659629522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 320254894 and 320254903.

It is not a weakly prime, because it can be changed into another prime (320254951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160127465 + 160127466.

It is an arithmetic number, because the mean of its divisors is an integer number (160127466).

Almost surely, 2^320254931 is an apocalyptic number.

320254931 is a deficient number, since it is larger than the sum of its proper divisors (1).

320254931 is an equidigital number, since it uses as much as digits as its factorization.

320254931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 320254931 is about 17895.6679394763. The cubic root of 320254931 is about 684.1719662406.

The spelling of 320254931 in words is "three hundred twenty million, two hundred fifty-four thousand, nine hundred thirty-one".