233147985 has 16 divisors (see below), whose sum is σ = 426327936. Its totient is φ = 106581888.

The previous prime is 233147977. The next prime is 233148089. The reversal of 233147985 is 589741332.

It is not a de Polignac number, because 233147985 - 2³ = 233147977 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1110124 + ... + 1110333.

It is an arithmetic number, because the mean of its divisors is an integer number (26645496).

Almost surely, 2^233147985 is an apocalyptic number.

It is an amenable number.

233147985 is a deficient number, since it is larger than the sum of its proper divisors (193179951).

233147985 is a wasteful number, since it uses less digits than its factorization.

233147985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220472.

The product of its digits is 181440, while the sum is 42.

The square root of 233147985 is about 15269.1841628818. The cubic root of 233147985 is about 615.4751962197.

The spelling of 233147985 in words is "two hundred thirty-three million, one hundred forty-seven thousand, nine hundred eighty-five".