142872279 has 8 divisors (see below), whose sum is σ = 207814272. Its totient is φ = 86589240.

The previous prime is 142872253. The next prime is 142872283. The reversal of 142872279 is 972278241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142872279 - 2⁹ = 142871767 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142872279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142872209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2164699 + ... + 2164764.

It is an arithmetic number, because the mean of its divisors is an integer number (25976784).

Almost surely, 2^142872279 is an apocalyptic number.

142872279 is a deficient number, since it is larger than the sum of its proper divisors (64941993).

142872279 is a wasteful number, since it uses less digits than its factorization.

142872279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4329477.

The product of its digits is 112896, while the sum is 42.

The square root of 142872279 is about 11952.9192668569. The cubic root of 142872279 is about 522.7764205140.

The spelling of 142872279 in words is "one hundred forty-two million, eight hundred seventy-two thousand, two hundred seventy-nine".