236129 has 2 divisors, whose sum is σ = 236130. Its totient is φ = 236128.

The previous prime is 236111. The next prime is 236143. The reversal of 236129 is 921632.

236129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123904 + 112225 = 352^2 + 335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-236129 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (236329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118064 + 118065.

It is an arithmetic number, because the mean of its divisors is an integer number (118065).

2²³⁶¹²⁹ is an apocalyptic number.

It is an amenable number.

236129 is a deficient number, since it is larger than the sum of its proper divisors (1).

236129 is an equidigital number, since it uses as much as digits as its factorization.

236129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 23.

The square root of 236129 is about 485.9310650699. The cubic root of 236129 is about 61.8087237155.

The spelling of 236129 in words is "two hundred thirty-six thousand, one hundred twenty-nine".