13115577 has 8 divisors (see below), whose sum is σ = 17698464. Its totient is φ = 8638208.

The previous prime is 13115563. The next prime is 13115579. The reversal of 13115577 is 77551131.

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

It is a cyclic number.

It is not a de Polignac number, because 13115577 - 2⁶ = 13115513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13115579) 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, 26088 + ... + 26585.

It is an arithmetic number, because the mean of its divisors is an integer number (2212308).

Almost surely, 2^13115577 is an apocalyptic number.

It is an amenable number.

13115577 is a deficient number, since it is larger than the sum of its proper divisors (4582887).

13115577 is an equidigital number, since it uses as much as digits as its factorization.

13115577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52759.

The product of its digits is 3675, while the sum is 30.

The square root of 13115577 is about 3621.5434554897. The cubic root of 13115577 is about 235.8282349228.

The spelling of 13115577 in words is "thirteen million, one hundred fifteen thousand, five hundred seventy-seven".