12774231 has 6 divisors (see below), whose sum is σ = 18451680. Its totient is φ = 8516148.

The previous prime is 12774227. The next prime is 12774233. The reversal of 12774231 is 13247721.

It is a happy number.

It is not a de Polignac number, because 12774231 - 2² = 12774227 is a prime.

It is a super-2 number, since 2×12774231² = 326361955282722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12774195 and 12774204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12774233) 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, 709671 + ... + 709688.

It is an arithmetic number, because the mean of its divisors is an integer number (3075280).

Almost surely, 2^12774231 is an apocalyptic number.

12774231 is a deficient number, since it is larger than the sum of its proper divisors (5677449).

12774231 is a wasteful number, since it uses less digits than its factorization.

12774231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419365 (or 1419362 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 12774231 is about 3574.1056223900. The cubic root of 12774231 is about 233.7643364862.

The spelling of 12774231 in words is "twelve million, seven hundred seventy-four thousand, two hundred thirty-one".