12669951 has 16 divisors (see below), whose sum is σ = 19526400. Its totient is φ = 7157568.

The previous prime is 12669949. The next prime is 12669961. The reversal of 12669951 is 15996621.

It is not a de Polignac number, because 12669951 - 2¹ = 12669949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12669961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1521 + ... + 5258.

It is an arithmetic number, because the mean of its divisors is an integer number (1220400).

Almost surely, 2^12669951 is an apocalyptic number.

12669951 is a deficient number, since it is larger than the sum of its proper divisors (6856449).

12669951 is an equidigital number, since it uses as much as digits as its factorization.

12669951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6878.

The product of its digits is 29160, while the sum is 39.

The square root of 12669951 is about 3559.4874631048. The cubic root of 12669951 is about 233.1265008397.

The spelling of 12669951 in words is "twelve million, six hundred sixty-nine thousand, nine hundred fifty-one".