142607938 has 12 divisors (see below), whose sum is σ = 235126710. Its totient is φ = 64821680.

The previous prime is 142607923. The next prime is 142607957. The reversal of 142607938 is 839706241.

It can be written as a sum of positive squares in only one way, i.e., 132641289 + 9966649 = 11517^2 + 3157^2 .

It is a super-2 number, since 2×142607938² = 40674047961223688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142607938.

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, 294403 + ... + 294886.

Almost surely, 2^142607938 is an apocalyptic number.

142607938 is a deficient number, since it is larger than the sum of its proper divisors (92518772).

142607938 is a wasteful number, since it uses less digits than its factorization.

142607938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589313 (or 589302 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 142607938 is about 11941.8565558292. The cubic root of 142607938 is about 522.4538093978.

The spelling of 142607938 in words is "one hundred forty-two million, six hundred seven thousand, nine hundred thirty-eight".