12815010 has 80 divisors (see below), whose sum is σ = 37139256. Its totient is φ = 3151872.

The previous prime is 12814993. The next prime is 12815017. The reversal of 12815010 is 1051821.

It can be written as a sum of positive squares in 4 ways, for example, as 6953769 + 5861241 = 2637^2 + 2421^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12815017) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9922 + ... + 11138.

Almost surely, 2^12815010 is an apocalyptic number.

12815010 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 12815010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18569628).

12815010 is an abundant number, since it is smaller than the sum of its proper divisors (24324246).

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

12815010 is a wasteful number, since it uses less digits than its factorization.

12815010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249 (or 1240 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 12815010 is about 3579.8058606578. The cubic root of 12815010 is about 234.0128198105.

Adding to 12815010 its reverse (1051821), we get a palindrome (13866831).

The spelling of 12815010 in words is "twelve million, eight hundred fifteen thousand, ten".