142424879 has 4 divisors (see below), whose sum is σ = 144838920. Its totient is φ = 140010840.

The previous prime is 142424873. The next prime is 142424911. The reversal of 142424879 is 978424241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 978424241 = 9013 ⋅108557.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142424879 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 (142424873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1206932 + ... + 1207049.

It is an arithmetic number, because the mean of its divisors is an integer number (36209730).

Almost surely, 2^142424879 is an apocalyptic number.

142424879 is a deficient number, since it is larger than the sum of its proper divisors (2414041).

142424879 is an equidigital number, since it uses as much as digits as its factorization.

142424879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414040.

The product of its digits is 129024, while the sum is 41.

The square root of 142424879 is about 11934.1894990820. The cubic root of 142424879 is about 522.2301640075.

The spelling of 142424879 in words is "one hundred forty-two million, four hundred twenty-four thousand, eight hundred seventy-nine".