1325939501 has 2 divisors, whose sum is σ = 1325939502. Its totient is φ = 1325939500.

The previous prime is 1325939449. The next prime is 1325939579. The reversal of 1325939501 is 1059395231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1020738601 + 305200900 = 31949^2 + 17470^2 .

It is an emirp because it is prime and its reverse (1059395231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1325939501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1325939101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662969750 + 662969751.

It is an arithmetic number, because the mean of its divisors is an integer number (662969751).

Almost surely, 2^1325939501 is an apocalyptic number.

It is an amenable number.

1325939501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325939501 is an equidigital number, since it uses as much as digits as its factorization.

1325939501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 1325939501 is about 36413.4521983291. The cubic root of 1325939501 is about 1098.6041526262.

The spelling of 1325939501 in words is "one billion, three hundred twenty-five million, nine hundred thirty-nine thousand, five hundred one".