12758031 has 48 divisors (see below), whose sum is σ = 22643712. Its totient is φ = 6811200.

The previous prime is 12758029. The next prime is 12758051. The reversal of 12758031 is 13085721.

It is not a de Polignac number, because 12758031 - 2¹ = 12758029 is a prime.

It is a super-2 number, since 2×12758031² = 325534709993922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12757986 and 12758004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12758051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29386 + ... + 29816.

It is an arithmetic number, because the mean of its divisors is an integer number (471744).

Almost surely, 2^12758031 is an apocalyptic number.

12758031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12758031 is a deficient number, since it is larger than the sum of its proper divisors (9885681).

12758031 is a wasteful number, since it uses less digits than its factorization.

12758031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484 (or 481 counting only the distinct ones).

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

The square root of 12758031 is about 3571.8386021768. The cubic root of 12758031 is about 233.6654764129.

The spelling of 12758031 in words is "twelve million, seven hundred fifty-eight thousand, thirty-one".