142222194 has 48 divisors (see below), whose sum is σ = 318898944. Its totient is φ = 45777600.

The previous prime is 142222193. The next prime is 142222207. The reversal of 142222194 is 491222241.

142222194 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (142222193) 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 23 ways as a sum of consecutive naturals, for example, 75079 + ... + 76949.

It is an arithmetic number, because the mean of its divisors is an integer number (6643728).

Almost surely, 2^142222194 is an apocalyptic number.

142222194 is an abundant number, since it is smaller than the sum of its proper divisors (176676750).

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

142222194 is a wasteful number, since it uses less digits than its factorization.

142222194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023 (or 2020 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 142222194 is about 11925.6946967462. The cubic root of 142222194 is about 521.9823176289.

The spelling of 142222194 in words is "one hundred forty-two million, two hundred twenty-two thousand, one hundred ninety-four".