12775131 has 16 divisors (see below), whose sum is σ = 19537920. Its totient is φ = 8241480.

The previous prime is 12775123. The next prime is 12775141. The reversal of 12775131 is 13157721.

It is a happy number.

It is not a de Polignac number, because 12775131 - 2³ = 12775123 is a prime.

It is a super-2 number, since 2×12775131² = 326407944134322, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 12775095 and 12775104.

It is not an unprimeable number, because it can be changed into a prime (12775141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6795 + ... + 8468.

It is an arithmetic number, because the mean of its divisors is an integer number (1221120).

Almost surely, 2^12775131 is an apocalyptic number.

12775131 is a deficient number, since it is larger than the sum of its proper divisors (6762789).

12775131 is a wasteful number, since it uses less digits than its factorization.

12775131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15303 (or 15297 counting only the distinct ones).

The product of its digits is 1470, while the sum is 27.

The square root of 12775131 is about 3574.2315257968. The cubic root of 12775131 is about 233.7698262612.

The spelling of 12775131 in words is "twelve million, seven hundred seventy-five thousand, one hundred thirty-one".