142029859 has 4 divisors (see below), whose sum is σ = 142053760. Its totient is φ = 142005960.

The previous prime is 142029847. The next prime is 142029889. The reversal of 142029859 is 958920241.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 142029859 - 2⁵ = 142029827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142029809) 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 3 ways as a sum of consecutive naturals, for example, 4657 + ... + 17485.

It is an arithmetic number, because the mean of its divisors is an integer number (35513440).

Almost surely, 2^142029859 is an apocalyptic number.

142029859 is a deficient number, since it is larger than the sum of its proper divisors (23901).

142029859 is a wasteful number, since it uses less digits than its factorization.

142029859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23900.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 142029859 is about 11917.6280777678. The cubic root of 142029859 is about 521.7469095512.

The spelling of 142029859 in words is "one hundred forty-two million, twenty-nine thousand, eight hundred fifty-nine".