13115180 has 48 divisors (see below), whose sum is σ = 30110304. Its totient is φ = 4769280.

The previous prime is 13115173. The next prime is 13115197. The reversal of 13115180 is 8151131.

13115180 = T₆₄ + T₆₅ + ... + T₄₂₈.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18635 + ... + 19325.

It is an arithmetic number, because the mean of its divisors is an integer number (627298).

Almost surely, 2^13115180 is an apocalyptic number.

13115180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13115180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15055152).

13115180 is an abundant number, since it is smaller than the sum of its proper divisors (16995124).

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

13115180 is a wasteful number, since it uses less digits than its factorization.

13115180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786 (or 784 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 20.

The square root of 13115180 is about 3621.4886441904. The cubic root of 13115180 is about 235.8258554429.

The spelling of 13115180 in words is "thirteen million, one hundred fifteen thousand, one hundred eighty".