1325973457 has 2 divisors, whose sum is σ = 1325973458. Its totient is φ = 1325973456.

The previous prime is 1325973449. The next prime is 1325973521. The reversal of 1325973457 is 7543795231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 838623681 + 487349776 = 28959^2 + 22076^2 .

It is a cyclic number.

It is not a de Polignac number, because 1325973457 - 2³ = 1325973449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1325973427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662986728 + 662986729.

It is an arithmetic number, because the mean of its divisors is an integer number (662986729).

Almost surely, 2^1325973457 is an apocalyptic number.

It is an amenable number.

1325973457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325973457 is an equidigital number, since it uses as much as digits as its factorization.

1325973457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 793800, while the sum is 46.

The square root of 1325973457 is about 36413.9184516031. The cubic root of 1325973457 is about 1098.6135306016.

The spelling of 1325973457 in words is "one billion, three hundred twenty-five million, nine hundred seventy-three thousand, four hundred fifty-seven".