12988115 has 16 divisors (see below), whose sum is σ = 18750720. Its totient is φ = 8436960.

The previous prime is 12988099. The next prime is 12988159. The reversal of 12988115 is 51188921.

It is not a de Polignac number, because 12988115 - 2⁴ = 12988099 is a prime.

It is a super-2 number, since 2×12988115² = 337382262506450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9101 + ... + 10430.

It is an arithmetic number, because the mean of its divisors is an integer number (1171920).

Almost surely, 2^12988115 is an apocalyptic number.

12988115 is a deficient number, since it is larger than the sum of its proper divisors (5762605).

12988115 is a wasteful number, since it uses less digits than its factorization.

12988115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19562.

The product of its digits is 5760, while the sum is 35.

The square root of 12988115 is about 3603.9027456356. The cubic root of 12988115 is about 235.0617915071.

The spelling of 12988115 in words is "twelve million, nine hundred eighty-eight thousand, one hundred fifteen".