13257849 has 12 divisors (see below), whose sum is σ = 19430768. Its totient is φ = 8034840.

The previous prime is 13257833. The next prime is 13257869. The reversal of 13257849 is 94875231.

13257849 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13257849 - 2⁴ = 13257833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13257869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17899 + ... + 18624.

Almost surely, 2^13257849 is an apocalyptic number.

It is an amenable number.

13257849 is a deficient number, since it is larger than the sum of its proper divisors (6172919).

13257849 is a wasteful number, since it uses less digits than its factorization.

13257849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36548 (or 36537 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 13257849 is about 3641.1329280871. The cubic root of 13257849 is about 236.6778903183.

The spelling of 13257849 in words is "thirteen million, two hundred fifty-seven thousand, eight hundred forty-nine".