142236029 has 16 divisors (see below), whose sum is σ = 162408960. Its totient is φ = 123612480.

The previous prime is 142236023. The next prime is 142236043. The reversal of 142236029 is 920632241.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142236029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142235992 and 142236010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142236023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10142 + ... + 19680.

It is an arithmetic number, because the mean of its divisors is an integer number (10150560).

Almost surely, 2^142236029 is an apocalyptic number.

It is an amenable number.

142236029 is a deficient number, since it is larger than the sum of its proper divisors (20172931).

142236029 is a wasteful number, since it uses less digits than its factorization.

142236029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9620.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 142236029 is about 11926.2747327068. The cubic root of 142236029 is about 521.9992427679. Note that the first 3 decimals are identical.

The spelling of 142236029 in words is "one hundred forty-two million, two hundred thirty-six thousand, twenty-nine".