13115707 has 4 divisors (see below), whose sum is σ = 14308056. Its totient is φ = 11923360.

The previous prime is 13115693. The next prime is 13115717. The reversal of 13115707 is 70751131.

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

It is a cyclic number.

It is not a de Polignac number, because 13115707 - 2⁷ = 13115579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13115717) 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, 596158 + ... + 596179.

It is an arithmetic number, because the mean of its divisors is an integer number (3577014).

Almost surely, 2^13115707 is an apocalyptic number.

13115707 is a deficient number, since it is larger than the sum of its proper divisors (1192349).

13115707 is a wasteful number, since it uses less digits than its factorization.

13115707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192348.

The product of its (nonzero) digits is 735, while the sum is 25.

The square root of 13115707 is about 3621.5614035938. The cubic root of 13115707 is about 235.8290140871.

Adding to 13115707 its reverse (70751131), we get a palindrome (83866838).

The spelling of 13115707 in words is "thirteen million, one hundred fifteen thousand, seven hundred seven".