142744122 has 12 divisors (see below), whose sum is σ = 309278970. Its totient is φ = 47581368.

The previous prime is 142744117. The next prime is 142744139. The reversal of 142744122 is 221447241.

It can be written as a sum of positive squares in only one way, i.e., 135978921 + 6765201 = 11661^2 + 2601^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3965097 + ... + 3965132.

Almost surely, 2^142744122 is an apocalyptic number.

142744122 is an abundant number, since it is smaller than the sum of its proper divisors (166534848).

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

142744122 is a wasteful number, since it uses less digits than its factorization.

142744122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7930237 (or 7930234 counting only the distinct ones).

The product of its digits is 3584, while the sum is 27.

The square root of 142744122 is about 11947.5571561721. The cubic root of 142744122 is about 522.6200629138.

The spelling of 142744122 in words is "one hundred forty-two million, seven hundred forty-four thousand, one hundred twenty-two".