12975518 has 8 divisors (see below), whose sum is σ = 20487720. Its totient is φ = 6146280.

The previous prime is 12975503. The next prime is 12975527. The reversal of 12975518 is 81557921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 341461 = 12975518 / (1 + 2 + 9 + 7 + 5 + 5 + 1 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170693 + ... + 170768.

It is an arithmetic number, because the mean of its divisors is an integer number (2560965).

Almost surely, 2^12975518 is an apocalyptic number.

12975518 is a deficient number, since it is larger than the sum of its proper divisors (7512202).

12975518 is a wasteful number, since it uses less digits than its factorization.

12975518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341482.

The product of its digits is 25200, while the sum is 38.

The square root of 12975518 is about 3602.1546329940. The cubic root of 12975518 is about 234.9857724901.

The spelling of 12975518 in words is "twelve million, nine hundred seventy-five thousand, five hundred eighteen".