12540683 has 4 divisors (see below), whose sum is σ = 12549888. Its totient is φ = 12531480.

The previous prime is 12540677. The next prime is 12540691. The reversal of 12540683 is 38604521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12540683 - 2⁴ = 12540667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12540623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2108 + ... + 5433.

It is an arithmetic number, because the mean of its divisors is an integer number (3137472).

Almost surely, 2^12540683 is an apocalyptic number.

12540683 is a deficient number, since it is larger than the sum of its proper divisors (9205).

12540683 is an equidigital number, since it uses as much as digits as its factorization.

12540683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9204.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 12540683 is about 3541.2826772230. The cubic root of 12540683 is about 232.3309473689.

The spelling of 12540683 in words is "twelve million, five hundred forty thousand, six hundred eighty-three".