142979530 has 16 divisors (see below), whose sum is σ = 258071040. Its totient is φ = 57034512.

The previous prime is 142979527. The next prime is 142979549. The reversal of 142979530 is 35979241.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15810 + ... + 23149.

It is an arithmetic number, because the mean of its divisors is an integer number (16129440).

Almost surely, 2^142979530 is an apocalyptic number.

142979530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142979530 is a deficient number, since it is larger than the sum of its proper divisors (115091510).

142979530 is a wasteful number, since it uses less digits than its factorization.

142979530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39333.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 142979530 is about 11957.4048187723. The cubic root of 142979530 is about 522.9071999542.

The spelling of 142979530 in words is "one hundred forty-two million, nine hundred seventy-nine thousand, five hundred thirty".