12759975 has 18 divisors (see below), whose sum is σ = 22854936. Its totient is φ = 6805200.

The previous prime is 12759973. The next prime is 12759991. The reversal of 12759975 is 57995721.

It is not a de Polignac number, because 12759975 - 2¹ = 12759973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 12759975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12759973) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 28131 + ... + 28580.

Almost surely, 2^12759975 is an apocalyptic number.

12759975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12759975 is a deficient number, since it is larger than the sum of its proper divisors (10094961).

12759975 is a wasteful number, since it uses less digits than its factorization.

12759975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56727 (or 56719 counting only the distinct ones).

The product of its digits is 198450, while the sum is 45.

The square root of 12759975 is about 3572.1107205684. The cubic root of 12759975 is about 233.6773440388.

The spelling of 12759975 in words is "twelve million, seven hundred fifty-nine thousand, nine hundred seventy-five".