142830988 has 6 divisors (see below), whose sum is σ = 249954236. Its totient is φ = 71415492.

The previous prime is 142830971. The next prime is 142831019. The reversal of 142830988 is 889038241.

It is a super-2 number, since 2×142830988² = 40801382266112288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17853870 + ... + 17853877.

Almost surely, 2^142830988 is an apocalyptic number.

It is an amenable number.

142830988 is a deficient number, since it is larger than the sum of its proper divisors (107123248).

142830988 is a wasteful number, since it uses less digits than its factorization.

142830988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35707751 (or 35707749 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 142830988 is about 11951.1919070861. The cubic root of 142830988 is about 522.7260537548.

The spelling of 142830988 in words is "one hundred forty-two million, eight hundred thirty thousand, nine hundred eighty-eight".