233020161 has 48 divisors (see below), whose sum is σ = 392034240. Its totient is φ = 131880960.

The previous prime is 233020157. The next prime is 233020169. The reversal of 233020161 is 161020332.

233020161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 233020161 - 2² = 233020157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (233020169) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 136465 + ... + 138161.

It is an arithmetic number, because the mean of its divisors is an integer number (8167380).

Almost surely, 2^233020161 is an apocalyptic number.

It is an amenable number.

233020161 is a deficient number, since it is larger than the sum of its proper divisors (159014079).

233020161 is a wasteful number, since it uses less digits than its factorization.

233020161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806 (or 1803 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 233020161 is about 15264.9979037011. The cubic root of 233020161 is about 615.3626970226.

Adding to 233020161 its reverse (161020332), we get a palindrome (394040493).

The spelling of 233020161 in words is "two hundred thirty-three million, twenty thousand, one hundred sixty-one".