1328375057 has 2 divisors, whose sum is σ = 1328375058. Its totient is φ = 1328375056.

The previous prime is 1328375039. The next prime is 1328375089. The reversal of 1328375057 is 7505738231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1307617921 + 20757136 = 36161^2 + 4556^2 .

It is an emirp because it is prime and its reverse (7505738231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1328375057 - 2¹⁴ = 1328358673 is a prime.

It is a super-3 number, since 3×1328375057³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1328375957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664187528 + 664187529.

It is an arithmetic number, because the mean of its divisors is an integer number (664187529).

Almost surely, 2^1328375057 is an apocalyptic number.

It is an amenable number.

1328375057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328375057 is an equidigital number, since it uses as much as digits as its factorization.

1328375057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 1328375057 is about 36446.8799350507. The cubic root of 1328375057 is about 1099.2763993128.

The spelling of 1328375057 in words is "one billion, three hundred twenty-eight million, three hundred seventy-five thousand, fifty-seven".