12651187 has 2 divisors, whose sum is σ = 12651188. Its totient is φ = 12651186.

The previous prime is 12651161. The next prime is 12651203. The reversal of 12651187 is 78115621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12651187 - 2⁷ = 12651059 is a prime.

It is a Chen prime.

It is equal to p₈₂₇₉₅₀ and since 12651187 and 827950 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (12651487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6325593 + 6325594.

It is an arithmetic number, because the mean of its divisors is an integer number (6325594).

Almost surely, 2^12651187 is an apocalyptic number.

12651187 is a deficient number, since it is larger than the sum of its proper divisors (1).

12651187 is an equidigital number, since it uses as much as digits as its factorization.

12651187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 31.

The square root of 12651187 is about 3556.8507137635. The cubic root of 12651187 is about 233.0113584079.

The spelling of 12651187 in words is "twelve million, six hundred fifty-one thousand, one hundred eighty-seven".