142932139 has 16 divisors (see below), whose sum is σ = 165166848. Its totient is φ = 121161312.

The previous prime is 142932121. The next prime is 142932197. The reversal of 142932139 is 931239241.

It is a cyclic number.

It is not a de Polignac number, because 142932139 - 2⁷ = 142932011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142932539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 465424 + ... + 465730.

It is an arithmetic number, because the mean of its divisors is an integer number (10322928).

Almost surely, 2^142932139 is an apocalyptic number.

142932139 is a deficient number, since it is larger than the sum of its proper divisors (22234709).

142932139 is a wasteful number, since it uses less digits than its factorization.

142932139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834.

The product of its digits is 11664, while the sum is 34.

The square root of 142932139 is about 11955.4229954444. The cubic root of 142932139 is about 522.8494205095.

The spelling of 142932139 in words is "one hundred forty-two million, nine hundred thirty-two thousand, one hundred thirty-nine".