12142583 has 4 divisors (see below), whose sum is σ = 12156480. Its totient is φ = 12128688.

The previous prime is 12142579. The next prime is 12142589. The reversal of 12142583 is 38524121.

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 12142583 - 2² = 12142579 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 (12142589) 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, 5543 + ... + 7416.

It is an arithmetic number, because the mean of its divisors is an integer number (3039120).

Almost surely, 2^12142583 is an apocalyptic number.

12142583 is a deficient number, since it is larger than the sum of its proper divisors (13897).

12142583 is an equidigital number, since it uses as much as digits as its factorization.

12142583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13896.

The product of its digits is 1920, while the sum is 26.

The square root of 12142583 is about 3484.6209262989. The cubic root of 12142583 is about 229.8460406317.

The spelling of 12142583 in words is "twelve million, one hundred forty-two thousand, five hundred eighty-three".