233228145 has 16 divisors (see below), whose sum is σ = 377890560. Its totient is φ = 122813184.

The previous prime is 233228141. The next prime is 233228161. The reversal of 233228145 is 541822332.

It is not a de Polignac number, because 233228145 - 2² = 233228141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (233228141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97224 + ... + 99593.

It is an arithmetic number, because the mean of its divisors is an integer number (23618160).

Almost surely, 2^233228145 is an apocalyptic number.

It is an amenable number.

233228145 is a deficient number, since it is larger than the sum of its proper divisors (144662415).

233228145 is a wasteful number, since it uses less digits than its factorization.

233228145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196904.

The product of its digits is 11520, while the sum is 30.

The square root of 233228145 is about 15271.8088319622. The cubic root of 233228145 is about 615.5457248707.

The spelling of 233228145 in words is "two hundred thirty-three million, two hundred twenty-eight thousand, one hundred forty-five".