1325915939 has 2 divisors, whose sum is σ = 1325915940. Its totient is φ = 1325915938.

The previous prime is 1325915887. The next prime is 1325916019. The reversal of 1325915939 is 9395195231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1325915939 - 2¹⁶ = 1325850403 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1325915893 and 1325915902.

It is not a weakly prime, because it can be changed into another prime (1325975939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662957969 + 662957970.

It is an arithmetic number, because the mean of its divisors is an integer number (662957970).

Almost surely, 2^1325915939 is an apocalyptic number.

1325915939 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325915939 is an equidigital number, since it uses as much as digits as its factorization.

1325915939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 328050, while the sum is 47.

The square root of 1325915939 is about 36413.1286626129. The cubic root of 1325915939 is about 1098.5976451738.

The spelling of 1325915939 in words is "one billion, three hundred twenty-five million, nine hundred fifteen thousand, nine hundred thirty-nine".