142599 has 4 divisors (see below), whose sum is σ = 190136. Its totient is φ = 95064.

The previous prime is 142591. The next prime is 142601. The reversal of 142599 is 995241.

It is a happy number.

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

It is not a de Polignac number, because 142599 - 2³ = 142591 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142591) 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, 23764 + ... + 23769.

It is an arithmetic number, because the mean of its divisors is an integer number (47534).

2¹⁴²⁵⁹⁹ is an apocalyptic number.

142599 is a deficient number, since it is larger than the sum of its proper divisors (47537).

142599 is an equidigital number, since it uses as much as digits as its factorization.

142599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47536.

The product of its digits is 3240, while the sum is 30.

The square root of 142599 is about 377.6228276998. The cubic root of 142599 is about 52.2442894181.

It can be divided in two parts, 142 and 599, that multiplied together give a palindrome (85058).

The spelling of 142599 in words is "one hundred forty-two thousand, five hundred ninety-nine".