23155033 has 4 divisors (see below), whose sum is σ = 25260048. Its totient is φ = 21050020.

The previous prime is 23155019. The next prime is 23155049. The reversal of 23155033 is 33055132.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23155033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23154995 and 23155013.

It is not an unprimeable number, because it can be changed into a prime (23155063) 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 in 3 ways as a sum of consecutive naturals, for example, 1052491 + ... + 1052512.

It is an arithmetic number, because the mean of its divisors is an integer number (6315012).

Almost surely, 2^23155033 is an apocalyptic number.

It is an amenable number.

23155033 is a deficient number, since it is larger than the sum of its proper divisors (2105015).

23155033 is a wasteful number, since it uses less digits than its factorization.

23155033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105014.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 23155033 is about 4811.9676848458. The cubic root of 23155033 is about 285.0242433465.

Subtracting 23155033 from its reverse (33055132), we obtain a palindrome (9900099).

The spelling of 23155033 in words is "twenty-three million, one hundred fifty-five thousand, thirty-three".