13408501 has 2 divisors, whose sum is σ = 13408502. Its totient is φ = 13408500.

The previous prime is 13408481. The next prime is 13408511. The reversal of 13408501 is 10580431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11895601 + 1512900 = 3449^2 + 1230^2 .

It is an emirp because it is prime and its reverse (10580431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13408501 is a prime.

It is a Chen prime.

It is equal to p₈₇₄₁₀₂ and since 13408501 and 874102 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13408511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6704250 + 6704251.

It is an arithmetic number, because the mean of its divisors is an integer number (6704251).

Almost surely, 2^13408501 is an apocalyptic number.

It is an amenable number.

13408501 is a deficient number, since it is larger than the sum of its proper divisors (1).

13408501 is an equidigital number, since it uses as much as digits as its factorization.

13408501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 13408501 is about 3661.7620075587. The cubic root of 13408501 is about 237.5709911510.

Adding to 13408501 its reverse (10580431), we get a palindrome (23988932).

The spelling of 13408501 in words is "thirteen million, four hundred eight thousand, five hundred one".