142185722 has 16 divisors (see below), whose sum is σ = 258085440. Its totient is φ = 57352128.

The previous prime is 142185713. The next prime is 142185731. The reversal of 142185722 is 227581241.

142185722 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (142185713) and next prime (142185731).

It is a super-2 number, since 2×142185722² = 40433559081322568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298472 + ... + 298947.

It is an arithmetic number, because the mean of its divisors is an integer number (16130340).

Almost surely, 2^142185722 is an apocalyptic number.

142185722 is a deficient number, since it is larger than the sum of its proper divisors (115899718).

142185722 is a wasteful number, since it uses less digits than its factorization.

142185722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597445.

The product of its digits is 8960, while the sum is 32.

The square root of 142185722 is about 11924.1654634612. The cubic root of 142185722 is about 521.9376941044.

The spelling of 142185722 in words is "one hundred forty-two million, one hundred eighty-five thousand, seven hundred twenty-two".