234989129 has 2 divisors, whose sum is σ = 234989130. Its totient is φ = 234989128.

The previous prime is 234989119. The next prime is 234989177. The reversal of 234989129 is 921989432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169702729 + 65286400 = 13027^2 + 8080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234989129 is a prime.

It is not a weakly prime, because it can be changed into another prime (234989119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117494564 + 117494565.

It is an arithmetic number, because the mean of its divisors is an integer number (117494565).

Almost surely, 2^234989129 is an apocalyptic number.

It is an amenable number.

234989129 is a deficient number, since it is larger than the sum of its proper divisors (1).

234989129 is an equidigital number, since it uses as much as digits as its factorization.

234989129 is an odious number, because the sum of its binary digits is odd.

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

The square root of 234989129 is about 15329.3551397311. The cubic root of 234989129 is about 617.0910635275.

The spelling of 234989129 in words is "two hundred thirty-four million, nine hundred eighty-nine thousand, one hundred twenty-nine".