233161216 has 20 divisors (see below), whose sum is σ = 465868062. Its totient is φ = 116580352.

The previous prime is 233161213. The next prime is 233161249. The reversal of 233161216 is 612161332.

It can be written as a sum of positive squares in only one way, i.e., 196000000 + 37161216 = 14000^2 + 6096^2 .

It is a pancake number, because a pancake can be divided into 233161216 parts by 21594 straight cuts.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233161213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227185 + ... + 228208.

Almost surely, 2^233161216 is an apocalyptic number.

It is an amenable number.

233161216 is a deficient number, since it is larger than the sum of its proper divisors (232706846).

233161216 is an frugal number, since it uses more digits than its factorization.

233161216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455411 (or 455395 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

The square root of 233161216 is about 15269.6174149846. The cubic root of 233161216 is about 615.4868386082.

The spelling of 233161216 in words is "two hundred thirty-three million, one hundred sixty-one thousand, two hundred sixteen".