229905057139 has 4 divisors (see below), whose sum is σ = 237832817760. Its totient is φ = 221977296520.

The previous prime is 229905057133. The next prime is 229905057233. The reversal of 229905057139 is 931750509922.

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 229905057139 - 2¹⁷ = 229904926067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229905057133) 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, 3963880267 + ... + 3963880324.

It is an arithmetic number, because the mean of its divisors is an integer number (59458204440).

Almost surely, 2^229905057139 is an apocalyptic number.

229905057139 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

229905057139 is a deficient number, since it is larger than the sum of its proper divisors (7927760621).

229905057139 is an equidigital number, since it uses as much as digits as its factorization.

229905057139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7927760620.

The product of its (nonzero) digits is 1530900, while the sum is 52.

The spelling of 229905057139 in words is "two hundred twenty-nine billion, nine hundred five million, fifty-seven thousand, one hundred thirty-nine".