12975187 has 2 divisors, whose sum is σ = 12975188. Its totient is φ = 12975186.

The previous prime is 12975181. The next prime is 12975191. The reversal of 12975187 is 78157921.

It is a strong prime.

It is an emirp because it is prime and its reverse (78157921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12975187 - 2¹¹ = 12973139 is a prime.

It is a super-3 number, since 3×12975187³ (a number of 22 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (12975181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6487593 + 6487594.

It is an arithmetic number, because the mean of its divisors is an integer number (6487594).

Almost surely, 2^12975187 is an apocalyptic number.

12975187 is a deficient number, since it is larger than the sum of its proper divisors (1).

12975187 is an equidigital number, since it uses as much as digits as its factorization.

12975187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 40.

The square root of 12975187 is about 3602.1086879771. The cubic root of 12975187 is about 234.9837743437.

The spelling of 12975187 in words is "twelve million, nine hundred seventy-five thousand, one hundred eighty-seven".