12945177 has 60 divisors (see below), whose sum is σ = 23774080. Its totient is φ = 6873984.

The previous prime is 12945173. The next prime is 12945187. The reversal of 12945177 is 77154921.

It is a happy number.

It is not a de Polignac number, because 12945177 - 2² = 12945173 is a prime.

It is a super-2 number, since 2×12945177² = 335155215122658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12945173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 163824 + ... + 163902.

Almost surely, 2^12945177 is an apocalyptic number.

12945177 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12945177 is a deficient number, since it is larger than the sum of its proper divisors (10828903).

12945177 is an equidigital number, since it uses as much as digits as its factorization.

12945177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 106 counting only the distinct ones).

The product of its digits is 17640, while the sum is 36.

The square root of 12945177 is about 3597.9406609893. The cubic root of 12945177 is about 234.8024717092.

The spelling of 12945177 in words is "twelve million, nine hundred forty-five thousand, one hundred seventy-seven".