13252621 has 2 divisors, whose sum is σ = 13252622. Its totient is φ = 13252620.

The previous prime is 13252609. The next prime is 13252627. The reversal of 13252621 is 12625231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11526025 + 1726596 = 3395^2 + 1314^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13252621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13252592 and 13252601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13252627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6626310 + 6626311.

It is an arithmetic number, because the mean of its divisors is an integer number (6626311).

Almost surely, 2^13252621 is an apocalyptic number.

It is an amenable number.

13252621 is a deficient number, since it is larger than the sum of its proper divisors (1).

13252621 is an equidigital number, since it uses as much as digits as its factorization.

13252621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 22.

The square root of 13252621 is about 3640.4149488760. The cubic root of 13252621 is about 236.6467763045.

Adding to 13252621 its reverse (12625231), we get a palindrome (25877852).

The spelling of 13252621 in words is "thirteen million, two hundred fifty-two thousand, six hundred twenty-one".