142966239 has 16 divisors (see below), whose sum is σ = 208180224. Its totient is φ = 86738400.

The previous prime is 142966217. The next prime is 142966267. The reversal of 142966239 is 932669241.

It is not a de Polignac number, because 142966239 - 2¹⁵ = 142933471 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142966239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142966939) 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 15 ways as a sum of consecutive naturals, for example, 23047 + ... + 28584.

It is an arithmetic number, because the mean of its divisors is an integer number (13011264).

Almost surely, 2^142966239 is an apocalyptic number.

142966239 is a deficient number, since it is larger than the sum of its proper divisors (65213985).

142966239 is a wasteful number, since it uses less digits than its factorization.

142966239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51718.

The product of its digits is 139968, while the sum is 42.

The square root of 142966239 is about 11956.8490414490. The cubic root of 142966239 is about 522.8909967607.

The spelling of 142966239 in words is "one hundred forty-two million, nine hundred sixty-six thousand, two hundred thirty-nine".