13307641 has 2 divisors, whose sum is σ = 13307642. Its totient is φ = 13307640.

The previous prime is 13307621. The next prime is 13307647. The reversal of 13307641 is 14670331.

13307641 = 2579² + 2580².

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6656400 + 6651241 = 2580^2 + 2579^2 .

It is a cyclic number.

It is not a de Polignac number, because 13307641 - 2¹⁵ = 13274873 is a prime.

It is not a weakly prime, because it can be changed into another prime (13307647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6653820 + 6653821.

It is an arithmetic number, because the mean of its divisors is an integer number (6653821).

Almost surely, 2^13307641 is an apocalyptic number.

13307641 is the 2580-th centered square number.

It is an amenable number.

13307641 is a deficient number, since it is larger than the sum of its proper divisors (1).

13307641 is an equidigital number, since it uses as much as digits as its factorization.

13307641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 13307641 is about 3647.9639526728. The cubic root of 13307641 is about 236.9738142183.

Adding to 13307641 its reverse (14670331), we get a palindrome (27977972).

The spelling of 13307641 in words is "thirteen million, three hundred seven thousand, six hundred forty-one".