13215000 has 80 divisors (see below), whose sum is σ = 41330520. Its totient is φ = 3520000.

The previous prime is 13214983. The next prime is 13215029. The reversal of 13215000 is 51231.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14560 + ... + 15440.

Almost surely, 2^13215000 is an apocalyptic number.

13215000 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 13215000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20665260).

13215000 is an abundant number, since it is smaller than the sum of its proper divisors (28115520).

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

13215000 is an equidigital number, since it uses as much as digits as its factorization.

13215000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910 (or 891 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 13215000 is about 3635.2441458587. The cubic root of 13215000 is about 236.4226363384.

Adding to 13215000 its reverse (51231), we get a palindrome (13266231).

The spelling of 13215000 in words is "thirteen million, two hundred fifteen thousand".