233285129 has 24 divisors (see below), whose sum is σ = 297014688. Its totient is φ = 181184640.

The previous prime is 233285099. The next prime is 233285131. The reversal of 233285129 is 921582332.

It is not a de Polignac number, because 233285129 - 2²⁴ = 216507913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233285149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 238289 + ... + 239265.

It is an arithmetic number, because the mean of its divisors is an integer number (12375612).

Almost surely, 2^233285129 is an apocalyptic number.

It is an amenable number.

233285129 is a deficient number, since it is larger than the sum of its proper divisors (63729559).

233285129 is a wasteful number, since it uses less digits than its factorization.

233285129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445 (or 1438 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 233285129 is about 15273.6743778306. The cubic root of 233285129 is about 615.5958523275.

The spelling of 233285129 in words is "two hundred thirty-three million, two hundred eighty-five thousand, one hundred twenty-nine".