142585243 has 4 divisors (see below), whose sum is σ = 144922768. Its totient is φ = 140247720.

The previous prime is 142585237. The next prime is 142585259. The reversal of 142585243 is 342585241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342585241 = 17 ⋅20152073.

It is a cyclic number.

It is not a de Polignac number, because 142585243 - 2²¹ = 140488091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142585199 and 142585208.

It is not an unprimeable number, because it can be changed into a prime (142585343) 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, 1168671 + ... + 1168792.

It is an arithmetic number, because the mean of its divisors is an integer number (36230692).

Almost surely, 2^142585243 is an apocalyptic number.

142585243 is a deficient number, since it is larger than the sum of its proper divisors (2337525).

142585243 is an equidigital number, since it uses as much as digits as its factorization.

142585243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2337524.

The product of its digits is 38400, while the sum is 34.

The square root of 142585243 is about 11940.9062888878. The cubic root of 142585243 is about 522.4260930392.

It can be divided in two parts, 1425 and 85243, that added together give a palindrome (86668).

The spelling of 142585243 in words is "one hundred forty-two million, five hundred eighty-five thousand, two hundred forty-three".