239142899 has 4 divisors (see below), whose sum is σ = 242712264. Its totient is φ = 235573536.

The previous prime is 239142833. The next prime is 239142901. The reversal of 239142899 is 998241932.

239142899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-239142899 is a prime.

It is a super-2 number, since 2×239142899² = 114378652284248402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (239142809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1784582 + ... + 1784715.

It is an arithmetic number, because the mean of its divisors is an integer number (60678066).

Almost surely, 2^239142899 is an apocalyptic number.

239142899 is a deficient number, since it is larger than the sum of its proper divisors (3569365).

239142899 is an equidigital number, since it uses as much as digits as its factorization.

239142899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3569364.

The product of its digits is 279936, while the sum is 47.

The square root of 239142899 is about 15464.2458270683. The cubic root of 239142899 is about 620.7058376550.

The spelling of 239142899 in words is "two hundred thirty-nine million, one hundred forty-two thousand, eight hundred ninety-nine".