13494521 has 2 divisors, whose sum is σ = 13494522. Its totient is φ = 13494520.

The previous prime is 13494511. The next prime is 13494563. The reversal of 13494521 is 12549431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10725625 + 2768896 = 3275^2 + 1664^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13494521 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13494511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6747260 + 6747261.

It is an arithmetic number, because the mean of its divisors is an integer number (6747261).

Almost surely, 2^13494521 is an apocalyptic number.

It is an amenable number.

13494521 is a deficient number, since it is larger than the sum of its proper divisors (1).

13494521 is an equidigital number, since it uses as much as digits as its factorization.

13494521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 29.

The square root of 13494521 is about 3673.4889410477. The cubic root of 13494521 is about 238.0779409536.

The spelling of 13494521 in words is "thirteen million, four hundred ninety-four thousand, five hundred twenty-one".