13497749 has 2 divisors, whose sum is σ = 13497750. Its totient is φ = 13497748.

The previous prime is 13497727. The next prime is 13497769. The reversal of 13497749 is 94779431.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12040900 + 1456849 = 3470^2 + 1207^2 .

It is a cyclic number.

It is not a de Polignac number, because 13497749 - 2¹⁶ = 13432213 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13497719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6748874 + 6748875.

It is an arithmetic number, because the mean of its divisors is an integer number (6748875).

Almost surely, 2^13497749 is an apocalyptic number.

It is an amenable number.

13497749 is a deficient number, since it is larger than the sum of its proper divisors (1).

13497749 is an equidigital number, since it uses as much as digits as its factorization.

13497749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 44.

The square root of 13497749 is about 3673.9282791040. The cubic root of 13497749 is about 238.0969228382.

The spelling of 13497749 in words is "thirteen million, four hundred ninety-seven thousand, seven hundred forty-nine".