12457161 has 12 divisors (see below), whose sum is σ = 18036720. Its totient is φ = 8284920.

The previous prime is 12457157. The next prime is 12457171. The reversal of 12457161 is 16175421.

It is a happy number.

12457161 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 12457161 - 2² = 12457157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12457111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3010 + ... + 5828.

It is an arithmetic number, because the mean of its divisors is an integer number (1503060).

Almost surely, 2^12457161 is an apocalyptic number.

It is an amenable number.

12457161 is a deficient number, since it is larger than the sum of its proper divisors (5579559).

12457161 is a wasteful number, since it uses less digits than its factorization.

12457161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3316 (or 3313 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 12457161 is about 3529.4703568666. The cubic root of 12457161 is about 231.8140168697.

The spelling of 12457161 in words is "twelve million, four hundred fifty-seven thousand, one hundred sixty-one".