229979233139 has 4 divisors (see below), whose sum is σ = 239978330256. Its totient is φ = 219980136024.

The previous prime is 229979233087. The next prime is 229979233151. The reversal of 229979233139 is 931332979922.

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

It is a cyclic number.

It is not a de Polignac number, because 229979233139 - 2⁸ = 229979232883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229979233199) 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, 4999548524 + ... + 4999548569.

It is an arithmetic number, because the mean of its divisors is an integer number (59994582564).

Almost surely, 2^229979233139 is an apocalyptic number.

229979233139 is a deficient number, since it is larger than the sum of its proper divisors (9999097117).

229979233139 is an equidigital number, since it uses as much as digits as its factorization.

229979233139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9999097116.

The product of its digits is 9920232, while the sum is 59.

The spelling of 229979233139 in words is "two hundred twenty-nine billion, nine hundred seventy-nine million, two hundred thirty-three thousand, one hundred thirty-nine".