13117149 has 12 divisors (see below), whose sum is σ = 20061756. Its totient is φ = 8230272.

The previous prime is 13117147. The next prime is 13117177. The reversal of 13117149 is 94171131.

13117149 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10692900 + 2424249 = 3270^2 + 1557^2 .

It is not a de Polignac number, because 13117149 - 2¹ = 13117147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13117141) 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, 42714 + ... + 43019.

It is an arithmetic number, because the mean of its divisors is an integer number (1671813).

Almost surely, 2^13117149 is an apocalyptic number.

It is an amenable number.

13117149 is a deficient number, since it is larger than the sum of its proper divisors (6944607).

13117149 is a wasteful number, since it uses less digits than its factorization.

13117149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85756 (or 85753 counting only the distinct ones).

The product of its digits is 756, while the sum is 27.

The square root of 13117149 is about 3621.7604835218. The cubic root of 13117149 is about 235.8376564723.

The spelling of 13117149 in words is "thirteen million, one hundred seventeen thousand, one hundred forty-nine".