12915210 has 64 divisors (see below), whose sum is σ = 38651904. Its totient is φ = 2683200.

The previous prime is 12915209. The next prime is 12915239. The reversal of 12915210 is 1251921.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 486 + ... + 5105.

It is an arithmetic number, because the mean of its divisors is an integer number (603936).

Almost surely, 2^12915210 is an apocalyptic number.

12915210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12915210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19325952).

12915210 is an abundant number, since it is smaller than the sum of its proper divisors (25736694).

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

12915210 is a wasteful number, since it uses less digits than its factorization.

12915210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5619.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 12915210 is about 3593.7737825300. The cubic root of 12915210 is about 234.6211490394.

The spelling of 12915210 in words is "twelve million, nine hundred fifteen thousand, two hundred ten".