142489198 has 8 divisors (see below), whose sum is σ = 214841808. Its totient is φ = 70875264.

The previous prime is 142489177. The next prime is 142489213. The reversal of 142489198 is 891984241.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184186 + ... + 184957.

It is an arithmetic number, because the mean of its divisors is an integer number (26855226).

Almost surely, 2^142489198 is an apocalyptic number.

142489198 is a deficient number, since it is larger than the sum of its proper divisors (72352610).

142489198 is a wasteful number, since it uses less digits than its factorization.

142489198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369338.

The product of its digits is 165888, while the sum is 46.

The square root of 142489198 is about 11936.8839317470. The cubic root of 142489198 is about 522.3087651318.

The spelling of 142489198 in words is "one hundred forty-two million, four hundred eighty-nine thousand, one hundred ninety-eight".