13249655 has 4 divisors (see below), whose sum is σ = 15899592. Its totient is φ = 10599720.

The previous prime is 13249609. The next prime is 13249657. The reversal of 13249655 is 55694231.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-13249655 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13249657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1324961 + ... + 1324970.

It is an arithmetic number, because the mean of its divisors is an integer number (3974898).

Almost surely, 2^13249655 is an apocalyptic number.

13249655 is a deficient number, since it is larger than the sum of its proper divisors (2649937).

13249655 is an equidigital number, since it uses as much as digits as its factorization.

13249655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2649936.

The product of its digits is 32400, while the sum is 35.

The square root of 13249655 is about 3640.0075549372. The cubic root of 13249655 is about 236.6291207603.

The spelling of 13249655 in words is "thirteen million, two hundred forty-nine thousand, six hundred fifty-five".