199272142 has 4 divisors (see below), whose sum is σ = 298908216. Its totient is φ = 99636070.

The previous prime is 199272119. The next prime is 199272149. The reversal of 199272142 is 241272991.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199272149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49818034 + ... + 49818037.

It is an arithmetic number, because the mean of its divisors is an integer number (74727054).

Almost surely, 2^199272142 is an apocalyptic number.

199272142 is a deficient number, since it is larger than the sum of its proper divisors (99636074).

199272142 is an equidigital number, since it uses as much as digits as its factorization.

199272142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99636073.

The product of its digits is 18144, while the sum is 37.

The square root of 199272142 is about 14116.3785015846. The cubic root of 199272142 is about 584.0932620651.

The spelling of 199272142 in words is "one hundred ninety-nine million, two hundred seventy-two thousand, one hundred forty-two".