12951171 has 24 divisors (see below), whose sum is σ = 19568640. Its totient is φ = 8559432.

The previous prime is 12951163. The next prime is 12951193. The reversal of 12951171 is 17115921.

12951171 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12951171 - 2³ = 12951163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12951131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54070 + ... + 54308.

It is an arithmetic number, because the mean of its divisors is an integer number (815360).

Almost surely, 2^12951171 is an apocalyptic number.

12951171 is a deficient number, since it is larger than the sum of its proper divisors (6617469).

12951171 is an equidigital number, since it uses as much as digits as its factorization.

12951171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 465 counting only the distinct ones).

The product of its digits is 630, while the sum is 27.

The square root of 12951171 is about 3598.7735410831. The cubic root of 12951171 is about 234.8387062813.

The spelling of 12951171 in words is "twelve million, nine hundred fifty-one thousand, one hundred seventy-one".