12542983 has 4 divisors (see below), whose sum is σ = 13203160. Its totient is φ = 11882808.

The previous prime is 12542951. The next prime is 12542989. The reversal of 12542983 is 38924521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12542983 - 2⁵ = 12542951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542989) 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 3 ways as a sum of consecutive naturals, for example, 330060 + ... + 330097.

It is an arithmetic number, because the mean of its divisors is an integer number (3300790).

Almost surely, 2^12542983 is an apocalyptic number.

12542983 is a deficient number, since it is larger than the sum of its proper divisors (660177).

12542983 is an equidigital number, since it uses as much as digits as its factorization.

12542983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660176.

The product of its digits is 17280, while the sum is 34.

The square root of 12542983 is about 3541.6074034257. The cubic root of 12542983 is about 232.3451499051.

The spelling of 12542983 in words is "twelve million, five hundred forty-two thousand, nine hundred eighty-three".