142542519 has 12 divisors (see below), whose sum is σ = 221086584. Its totient is φ = 81452784.

The previous prime is 142542497. The next prime is 142542551. The reversal of 142542519 is 915245241.

It is not a de Polignac number, because 142542519 - 2⁵ = 142542487 is a prime.

It is a super-2 number, since 2×142542519² = 40636739445730722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142542519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142542319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 484692 + ... + 484985.

It is an arithmetic number, because the mean of its divisors is an integer number (18423882).

Almost surely, 2^142542519 is an apocalyptic number.

142542519 is a deficient number, since it is larger than the sum of its proper divisors (78544065).

142542519 is an equidigital number, since it uses as much as digits as its factorization.

142542519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969694 (or 969687 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The square root of 142542519 is about 11939.1171784182. The cubic root of 142542519 is about 522.3739082043.

The spelling of 142542519 in words is "one hundred forty-two million, five hundred forty-two thousand, five hundred nineteen".