12513087 has 6 divisors (see below), whose sum is σ = 18074472. Its totient is φ = 8342052.

The previous prime is 12513049. The next prime is 12513101. The reversal of 12513087 is 78031521.

It is not a de Polignac number, because 12513087 - 2⁶ = 12513023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12513087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12513187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 695163 + ... + 695180.

It is an arithmetic number, because the mean of its divisors is an integer number (3012412).

Almost surely, 2^12513087 is an apocalyptic number.

12513087 is a deficient number, since it is larger than the sum of its proper divisors (5561385).

12513087 is a wasteful number, since it uses less digits than its factorization.

12513087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390349 (or 1390346 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 12513087 is about 3537.3842030517. The cubic root of 12513087 is about 232.1604060625.

The spelling of 12513087 in words is "twelve million, five hundred thirteen thousand, eighty-seven".