233043161 has 8 divisors (see below), whose sum is σ = 251148744. Its totient is φ = 214963200.

The previous prime is 233043137. The next prime is 233043163. The reversal of 233043161 is 161340332.

It can be written as a sum of positive squares in 4 ways, for example, as 39137536 + 193905625 = 6256^2 + 13925^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 233043161 - 2²² = 228848857 is a prime.

It is a super-2 number, since 2×233043161² = 108618229777743842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (233043163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15215 + ... + 26411.

It is an arithmetic number, because the mean of its divisors is an integer number (31393593).

Almost surely, 2^233043161 is an apocalyptic number.

It is an amenable number.

233043161 is a deficient number, since it is larger than the sum of its proper divisors (18105583).

233043161 is a wasteful number, since it uses less digits than its factorization.

233043161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12811.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 233043161 is about 15265.7512425691. The cubic root of 233043161 is about 615.3829425904.

Adding to 233043161 its reverse (161340332), we get a palindrome (394383493).

The spelling of 233043161 in words is "two hundred thirty-three million, forty-three thousand, one hundred sixty-one".