155233 has 4 divisors (see below), whose sum is σ = 167188. Its totient is φ = 143280.

The previous prime is 155231. The next prime is 155251. The reversal of 155233 is 332551.

155233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332551 = 41 ⋅8111.

It can be written as a sum of positive squares in 2 ways, for example, as 31329 + 123904 = 177^2 + 352^2 .

It is a cyclic number.

It is not a de Polignac number, because 155233 - 2¹ = 155231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 155233.

It is not an unprimeable number, because it can be changed into a prime (155231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5958 + ... + 5983.

It is an arithmetic number, because the mean of its divisors is an integer number (41797).

2¹⁵⁵²³³ is an apocalyptic number.

155233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

155233 is a deficient number, since it is larger than the sum of its proper divisors (11955).

155233 is a wasteful number, since it uses less digits than its factorization.

155233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11954.

The product of its digits is 450, while the sum is 19.

The square root of 155233 is about 393.9961928750. The cubic root of 155233 is about 53.7437562605.

Adding to 155233 its reverse (332551), we get a palindrome (487784).

The spelling of 155233 in words is "one hundred fifty-five thousand, two hundred thirty-three".