229131108929 has 2 divisors, whose sum is σ = 229131108930. Its totient is φ = 229131108928.

The previous prime is 229131108917. The next prime is 229131109003. The reversal of 229131108929 is 929801131922.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183303859600 + 45827249329 = 428140^2 + 214073^2 .

It is a cyclic number.

It is not a de Polignac number, because 229131108929 - 2³² = 224836141633 is a prime.

It is not a weakly prime, because it can be changed into another prime (229131108529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114565554464 + 114565554465.

It is an arithmetic number, because the mean of its divisors is an integer number (114565554465).

Almost surely, 2^229131108929 is an apocalyptic number.

It is an amenable number.

229131108929 is a deficient number, since it is larger than the sum of its proper divisors (1).

229131108929 is an equidigital number, since it uses as much as digits as its factorization.

229131108929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 47.

The spelling of 229131108929 in words is "two hundred twenty-nine billion, one hundred thirty-one million, one hundred eight thousand, nine hundred twenty-nine".