12515019 has 16 divisors (see below), whose sum is σ = 18593280. Its totient is φ = 7422560.

The previous prime is 12515003. The next prime is 12515023. The reversal of 12515019 is 91051521.

It is a cyclic number.

It is not a de Polignac number, because 12515019 - 2⁴ = 12515003 is a prime.

It is a super-2 number, since 2×12515019² = 313251401140722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12515019.

It is not an unprimeable number, because it can be changed into a prime (12515029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2484 + ... + 5585.

It is an arithmetic number, because the mean of its divisors is an integer number (1162080).

Almost surely, 2^12515019 is an apocalyptic number.

12515019 is a deficient number, since it is larger than the sum of its proper divisors (6078261).

12515019 is a wasteful number, since it uses less digits than its factorization.

12515019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8130.

The product of its (nonzero) digits is 450, while the sum is 24.

The square root of 12515019 is about 3537.6572756557. The cubic root of 12515019 is about 232.1723538422.

The spelling of 12515019 in words is "twelve million, five hundred fifteen thousand, nineteen".