13253649 has 4 divisors (see below), whose sum is σ = 17671536. Its totient is φ = 8835764.

The previous prime is 13253633. The next prime is 13253677. The reversal of 13253649 is 94635231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13253649 - 2⁴ = 13253633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13253249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2208939 + ... + 2208944.

It is an arithmetic number, because the mean of its divisors is an integer number (4417884).

Almost surely, 2^13253649 is an apocalyptic number.

It is an amenable number.

13253649 is a deficient number, since it is larger than the sum of its proper divisors (4417887).

13253649 is an equidigital number, since it uses as much as digits as its factorization.

13253649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4417886.

The product of its digits is 19440, while the sum is 33.

The square root of 13253649 is about 3640.5561388337. The cubic root of 13253649 is about 236.6528950086.

The spelling of 13253649 in words is "thirteen million, two hundred fifty-three thousand, six hundred forty-nine".