12520878 has 16 divisors (see below), whose sum is σ = 26130816. Its totient is φ = 3992120.

The previous prime is 12520873. The next prime is 12520883. The reversal of 12520878 is 87802521.

It is an interprime number because it is at equal distance from previous prime (12520873) and next prime (12520883).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12520873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45228 + ... + 45503.

It is an arithmetic number, because the mean of its divisors is an integer number (1633176).

Almost surely, 2^12520878 is an apocalyptic number.

12520878 is an abundant number, since it is smaller than the sum of its proper divisors (13609938).

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

12520878 is a wasteful number, since it uses less digits than its factorization.

12520878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90759.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 12520878 is about 3538.4852691512. The cubic root of 12520878 is about 232.2085792659.

The spelling of 12520878 in words is "twelve million, five hundred twenty thousand, eight hundred seventy-eight".