142271898 has 32 divisors (see below), whose sum is σ = 287878272. Its totient is φ = 46872000.

The previous prime is 142271879. The next prime is 142271903. The reversal of 142271898 is 898172241.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337728 + ... + 338148.

It is an arithmetic number, because the mean of its divisors is an integer number (8996196).

Almost surely, 2^142271898 is an apocalyptic number.

142271898 is an abundant number, since it is smaller than the sum of its proper divisors (145606374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142271898 is a wasteful number, since it uses less digits than its factorization.

142271898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950.

The product of its digits is 64512, while the sum is 42.

The square root of 142271898 is about 11927.7784184650. The cubic root of 142271898 is about 522.0431182362.

The spelling of 142271898 in words is "one hundred forty-two million, two hundred seventy-one thousand, eight hundred ninety-eight".