12080731 has 12 divisors (see below), whose sum is σ = 13457136. Its totient is φ = 10780560.

The previous prime is 12080729. The next prime is 12080737. The reversal of 12080731 is 13708021.

It is not a de Polignac number, because 12080731 - 2¹ = 12080729 is a prime.

It is a super-2 number, since 2×12080731² = 291888122988722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12080737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12010 + ... + 12976.

It is an arithmetic number, because the mean of its divisors is an integer number (1121428).

Almost surely, 2^12080731 is an apocalyptic number.

12080731 is a deficient number, since it is larger than the sum of its proper divisors (1376405).

12080731 is an equidigital number, since it uses as much as digits as its factorization.

12080731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042 (or 1011 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 12080731 is about 3475.7345986137. The cubic root of 12080731 is about 229.4551121542.

Adding to 12080731 its reverse (13708021), we get a palindrome (25788752).

The spelling of 12080731 in words is "twelve million, eighty thousand, seven hundred thirty-one".