13249131 has 8 divisors (see below), whose sum is σ = 20189184. Its totient is φ = 7570920.

The previous prime is 13249111. The next prime is 13249141. The reversal of 13249131 is 13194231.

13249131 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13249131 - 2⁷ = 13249003 is a prime.

It is a super-2 number, since 2×13249131² = 351078944510322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13249111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315435 + ... + 315476.

It is an arithmetic number, because the mean of its divisors is an integer number (2523648).

Almost surely, 2^13249131 is an apocalyptic number.

13249131 is a deficient number, since it is larger than the sum of its proper divisors (6940053).

13249131 is an equidigital number, since it uses as much as digits as its factorization.

13249131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630921.

The product of its digits is 648, while the sum is 24.

The square root of 13249131 is about 3639.9355763530. The cubic root of 13249131 is about 236.6260013007.

The spelling of 13249131 in words is "thirteen million, two hundred forty-nine thousand, one hundred thirty-one".