1325360521 has 2 divisors, whose sum is σ = 1325360522. Its totient is φ = 1325360520.

The previous prime is 1325360503. The next prime is 1325360527. The reversal of 1325360521 is 1250635231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1023296121 + 302064400 = 31989^2 + 17380^2 .

It is a cyclic number.

It is not a de Polignac number, because 1325360521 - 2¹¹ = 1325358473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1325360521.

It is not a weakly prime, because it can be changed into another prime (1325360527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662680260 + 662680261.

It is an arithmetic number, because the mean of its divisors is an integer number (662680261).

Almost surely, 2^1325360521 is an apocalyptic number.

It is an amenable number.

1325360521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325360521 is an equidigital number, since it uses as much as digits as its factorization.

1325360521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 1325360521 is about 36405.5012463776. The cubic root of 1325360521 is about 1098.4442251595. Note that the first 3 decimals are identical.

Adding to 1325360521 its reverse (1250635231), we get a palindrome (2575995752).

The spelling of 1325360521 in words is "one billion, three hundred twenty-five million, three hundred sixty thousand, five hundred twenty-one".