12257361 has 6 divisors (see below), whose sum is σ = 17705090. Its totient is φ = 8171568.

The previous prime is 12257359. The next prime is 12257381. The reversal of 12257361 is 16375221.

It is a happy number.

12257361 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8156736 + 4100625 = 2856^2 + 2025^2 .

It is not a de Polignac number, because 12257361 - 2¹ = 12257359 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12257351) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 680956 + ... + 680973.

Almost surely, 2^12257361 is an apocalyptic number.

It is an amenable number.

12257361 is a deficient number, since it is larger than the sum of its proper divisors (5447729).

12257361 is a wasteful number, since it uses less digits than its factorization.

12257361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361935 (or 1361932 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 12257361 is about 3501.0514135042. The cubic root of 12257361 is about 230.5679787202.

The spelling of 12257361 in words is "twelve million, two hundred fifty-seven thousand, three hundred sixty-one".