142839254 has 8 divisors (see below), whose sum is σ = 215148648. Its totient is φ = 71123040.

The previous prime is 142839233. The next prime is 142839259. The reversal of 142839254 is 452938241.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142839259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147692 + ... + 148655.

It is an arithmetic number, because the mean of its divisors is an integer number (26893581).

Almost surely, 2^142839254 is an apocalyptic number.

142839254 is a deficient number, since it is larger than the sum of its proper divisors (72309394).

142839254 is a wasteful number, since it uses less digits than its factorization.

142839254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296590.

The product of its digits is 69120, while the sum is 38.

The square root of 142839254 is about 11951.5377253306. The cubic root of 142839254 is about 522.7361373982.

The spelling of 142839254 in words is "one hundred forty-two million, eight hundred thirty-nine thousand, two hundred fifty-four".