12522279 has 32 divisors (see below), whose sum is σ = 21012480. Its totient is φ = 6444000.

The previous prime is 12522277. The next prime is 12522329. The reversal of 12522279 is 97222521.

It is not a de Polignac number, because 12522279 - 2¹ = 12522277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12522271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34702 + ... + 35060.

It is an arithmetic number, because the mean of its divisors is an integer number (656640).

Almost surely, 2^12522279 is an apocalyptic number.

12522279 is a deficient number, since it is larger than the sum of its proper divisors (8490201).

12522279 is a wasteful number, since it uses less digits than its factorization.

12522279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531.

The product of its digits is 5040, while the sum is 30.

The square root of 12522279 is about 3538.6832296774. The cubic root of 12522279 is about 232.2172397898.

The spelling of 12522279 in words is "twelve million, five hundred twenty-two thousand, two hundred seventy-nine".