1325123057 has 2 divisors, whose sum is σ = 1325123058. Its totient is φ = 1325123056.

The previous prime is 1325123053. The next prime is 1325123087. The reversal of 1325123057 is 7503215231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1083133921 + 241989136 = 32911^2 + 15556^2 .

It is a cyclic number.

It is not a de Polignac number, because 1325123057 - 2² = 1325123053 is a prime.

It is a super-2 number, since 2×1325123057² = 3511902232386050498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1325123053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662561528 + 662561529.

It is an arithmetic number, because the mean of its divisors is an integer number (662561529).

Almost surely, 2^1325123057 is an apocalyptic number.

It is an amenable number.

1325123057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325123057 is an equidigital number, since it uses as much as digits as its factorization.

1325123057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 1325123057 is about 36402.2397250499. The cubic root of 1325123057 is about 1098.3786187238.

Adding to 1325123057 its reverse (7503215231), we get a palindrome (8828338288).

The spelling of 1325123057 in words is "one billion, three hundred twenty-five million, one hundred twenty-three thousand, fifty-seven".