13427549 has 2 divisors, whose sum is σ = 13427550. Its totient is φ = 13427548.

The previous prime is 13427543. The next prime is 13427563. The reversal of 13427549 is 94572431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9721924 + 3705625 = 3118^2 + 1925^2 .

It is a cyclic number.

It is not a de Polignac number, because 13427549 - 2¹² = 13423453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13427543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6713774 + 6713775.

It is an arithmetic number, because the mean of its divisors is an integer number (6713775).

Almost surely, 2^13427549 is an apocalyptic number.

It is an amenable number.

13427549 is a deficient number, since it is larger than the sum of its proper divisors (1).

13427549 is an equidigital number, since it uses as much as digits as its factorization.

13427549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 13427549 is about 3664.3620181418. The cubic root of 13427549 is about 237.6834350173.

The spelling of 13427549 in words is "thirteen million, four hundred twenty-seven thousand, five hundred forty-nine".