23155003 has 4 divisors (see below), whose sum is σ = 24517080. Its totient is φ = 21792928.

The previous prime is 23154991. The next prime is 23155009. The reversal of 23155003 is 30055132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23155003 - 2¹³ = 23146811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23155009) 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, 681013 + ... + 681046.

It is an arithmetic number, because the mean of its divisors is an integer number (6129270).

Almost surely, 2^23155003 is an apocalyptic number.

23155003 is a deficient number, since it is larger than the sum of its proper divisors (1362077).

23155003 is a wasteful number, since it uses less digits than its factorization.

23155003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362076.

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

The square root of 23155003 is about 4811.9645676168. The cubic root of 23155003 is about 285.0241202526.

The spelling of 23155003 in words is "twenty-three million, one hundred fifty-five thousand, three".