13115830 has 96 divisors (see below), whose sum is σ = 31026240. Its totient is φ = 3951360.

The previous prime is 13115827. The next prime is 13115831. The reversal of 13115830 is 3851131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13115831) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 184695 + ... + 184765.

It is an arithmetic number, because the mean of its divisors is an integer number (323190).

Almost surely, 2^13115830 is an apocalyptic number.

13115830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13115830 is an abundant number, since it is smaller than the sum of its proper divisors (17910410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13115830 is a wasteful number, since it uses less digits than its factorization.

13115830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 13115830 is about 3621.5783851796. The cubic root of 13115830 is about 235.8297512917.

Adding to 13115830 its reverse (3851131), we get a palindrome (16966961).

The spelling of 13115830 in words is "thirteen million, one hundred fifteen thousand, eight hundred thirty".