12612915 has 48 divisors (see below), whose sum is σ = 25928448. Its totient is φ = 5762016.

The previous prime is 12612913. The next prime is 12612917. The reversal of 12612915 is 51921621.

It is an interprime number because it is at equal distance from previous prime (12612913) and next prime (12612917).

It is not a de Polignac number, because 12612915 - 2¹ = 12612913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12612913) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 7764 + ... + 9246.

It is an arithmetic number, because the mean of its divisors is an integer number (540176).

Almost surely, 2^12612915 is an apocalyptic number.

12612915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12612915 is an abundant number, since it is smaller than the sum of its proper divisors (13315533).

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

12612915 is an equidigital number, since it uses as much as digits as its factorization.

12612915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510 (or 1498 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 12612915 is about 3551.4665984632. The cubic root of 12612915 is about 232.7761546944.

It can be divided in two parts, 126 and 12915, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 12612915 in words is "twelve million, six hundred twelve thousand, nine hundred fifteen".