142393122 has 24 divisors (see below), whose sum is σ = 326667276. Its totient is φ = 44672256.

The previous prime is 142393117. The next prime is 142393159. The reversal of 142393122 is 221393241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 139499721 + 2893401 = 11811^2 + 1701^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232363 + ... + 232974.

Almost surely, 2^142393122 is an apocalyptic number.

142393122 is an abundant number, since it is smaller than the sum of its proper divisors (184274154).

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

142393122 is a wasteful number, since it uses less digits than its factorization.

142393122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465362 (or 465359 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 142393122 is about 11932.8589198063. The cubic root of 142393122 is about 522.1913465943.

The spelling of 142393122 in words is "one hundred forty-two million, three hundred ninety-three thousand, one hundred twenty-two".