233223155 has 8 divisors (see below), whose sum is σ = 305310384. Its totient is φ = 169616800.

The previous prime is 233223139. The next prime is 233223167. The reversal of 233223155 is 551322332.

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

It is not a de Polignac number, because 233223155 - 2⁴ = 233223139 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2120156 + ... + 2120265.

It is an arithmetic number, because the mean of its divisors is an integer number (38163798).

Almost surely, 2^233223155 is an apocalyptic number.

233223155 is a deficient number, since it is larger than the sum of its proper divisors (72087229).

233223155 is a wasteful number, since it uses less digits than its factorization.

233223155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4240437.

The product of its digits is 5400, while the sum is 26.

The square root of 233223155 is about 15271.6454581685. The cubic root of 233223155 is about 615.5413348987.

Adding to 233223155 its reverse (551322332), we get a palindrome (784545487).

The spelling of 233223155 in words is "two hundred thirty-three million, two hundred twenty-three thousand, one hundred fifty-five".