328123057 has 2 divisors, whose sum is σ = 328123058. Its totient is φ = 328123056.

The previous prime is 328123049. The next prime is 328123063. The reversal of 328123057 is 750321823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 325297296 + 2825761 = 18036^2 + 1681^2 .

It is a cyclic number.

It is not a de Polignac number, because 328123057 - 2³ = 328123049 is a prime.

It is not a weakly prime, because it can be changed into another prime (328127057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164061528 + 164061529.

It is an arithmetic number, because the mean of its divisors is an integer number (164061529).

Almost surely, 2^328123057 is an apocalyptic number.

It is an amenable number.

328123057 is a deficient number, since it is larger than the sum of its proper divisors (1).

328123057 is an equidigital number, since it uses as much as digits as its factorization.

328123057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 328123057 is about 18114.1673007621. The cubic root of 328123057 is about 689.7296826730.

The spelling of 328123057 in words is "three hundred twenty-eight million, one hundred twenty-three thousand, fifty-seven".