142192722 has 32 divisors (see below), whose sum is σ = 335499264. Its totient is φ = 39315600.

The previous prime is 142192697. The next prime is 142192733. The reversal of 142192722 is 227291241.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 142192722.

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, 53304 + ... + 55907.

It is an arithmetic number, because the mean of its divisors is an integer number (10484352).

Almost surely, 2^142192722 is an apocalyptic number.

142192722 is an abundant number, since it is smaller than the sum of its proper divisors (193306542).

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

142192722 is a wasteful number, since it uses less digits than its factorization.

142192722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109254.

The product of its digits is 4032, while the sum is 30.

The square root of 142192722 is about 11924.4589814381. The cubic root of 142192722 is about 521.9462592023.

The spelling of 142192722 in words is "one hundred forty-two million, one hundred ninety-two thousand, seven hundred twenty-two".