12881715 has 64 divisors (see below), whose sum is σ = 27095040. Its totient is φ = 5063040.

The previous prime is 12881711. The next prime is 12881719. The reversal of 12881715 is 51718821.

12881715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12881711) and next prime (12881719).

It is not a de Polignac number, because 12881715 - 2² = 12881711 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (12881711) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21652 + ... + 22238.

It is an arithmetic number, because the mean of its divisors is an integer number (423360).

Almost surely, 2^12881715 is an apocalyptic number.

12881715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12881715 is an abundant number, since it is smaller than the sum of its proper divisors (14213325).

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

12881715 is a wasteful number, since it uses less digits than its factorization.

12881715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632.

The product of its digits is 4480, while the sum is 33.

The square root of 12881715 is about 3589.1106140658. The cubic root of 12881715 is about 234.4181470786.

It can be divided in two parts, 1288 and 1715, that added together give a palindrome (3003).

The spelling of 12881715 in words is "twelve million, eight hundred eighty-one thousand, seven hundred fifteen".