142317738 has 12 divisors (see below), whose sum is σ = 308355138. Its totient is φ = 47439240.

The previous prime is 142317719. The next prime is 142317743. The reversal of 142317738 is 837713241.

142317738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 101062809 + 41254929 = 10053^2 + 6423^2 .

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, 3953253 + ... + 3953288.

Almost surely, 2^142317738 is an apocalyptic number.

142317738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

142317738 is an abundant number, since it is smaller than the sum of its proper divisors (166037400).

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

142317738 is a wasteful number, since it uses less digits than its factorization.

142317738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7906549 (or 7906546 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 142317738 is about 11929.6998285791. The cubic root of 142317738 is about 522.0991796398.

The spelling of 142317738 in words is "one hundred forty-two million, three hundred seventeen thousand, seven hundred thirty-eight".