13115000 has 80 divisors (see below), whose sum is σ = 31958520. Its totient is φ = 5040000.

The previous prime is 13114993. The next prime is 13115017. The reversal of 13115000 is 51131.

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 214970 + ... + 215030.

Almost surely, 2^13115000 is an apocalyptic number.

13115000 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 13115000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15979260).

13115000 is an abundant number, since it is smaller than the sum of its proper divisors (18843520).

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

13115000 is an equidigital number, since it uses as much as digits as its factorization.

13115000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 15, while the sum is 11.

The square root of 13115000 is about 3621.4637924464. The cubic root of 13115000 is about 235.8247765697.

Adding to 13115000 its reverse (51131), we get a palindrome (13166131).

The spelling of 13115000 in words is "thirteen million, one hundred fifteen thousand".