12522987 has 12 divisors (see below), whose sum is σ = 18120024. Its totient is φ = 8334240.

The previous prime is 12522973. The next prime is 12523073. The reversal of 12522987 is 78922521.

It is not a de Polignac number, because 12522987 - 2¹⁶ = 12457451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12522907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8023 + ... + 9455.

It is an arithmetic number, because the mean of its divisors is an integer number (1510002).

Almost surely, 2^12522987 is an apocalyptic number.

12522987 is a deficient number, since it is larger than the sum of its proper divisors (5597037).

12522987 is a wasteful number, since it uses less digits than its factorization.

12522987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410 (or 2407 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 12522987 is about 3538.7832654742. The cubic root of 12522987 is about 232.2216161685.

It can be divided in two parts, 125229 and 87, that added together give a square (125316 = 354²).

The spelling of 12522987 in words is "twelve million, five hundred twenty-two thousand, nine hundred eighty-seven".