142429739 has 8 divisors (see below), whose sum is σ = 145966080. Its totient is φ = 138935016.

The previous prime is 142429697. The next prime is 142429753. The reversal of 142429739 is 937924241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142429739 - 2¹⁶ = 142364203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142429696 and 142429705.

It is not an unprimeable number, because it can be changed into a prime (142429139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3419 + ... + 17220.

It is an arithmetic number, because the mean of its divisors is an integer number (18245760).

Almost surely, 2^142429739 is an apocalyptic number.

142429739 is a deficient number, since it is larger than the sum of its proper divisors (3536341).

142429739 is a wasteful number, since it uses less digits than its factorization.

142429739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20809.

The product of its digits is 108864, while the sum is 41.

The square root of 142429739 is about 11934.3931140213. The cubic root of 142429739 is about 522.2361040037.

The spelling of 142429739 in words is "one hundred forty-two million, four hundred twenty-nine thousand, seven hundred thirty-nine".