23039143 has 4 divisors (see below), whose sum is σ = 23262928. Its totient is φ = 22815360.

The previous prime is 23039119. The next prime is 23039147. The reversal of 23039143 is 34193032.

It is a happy number.

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 23039143 - 2¹⁷ = 22908071 is a prime.

It is a super-2 number, since 2×23039143² = 1061604220348898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23039147) 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, 111738 + ... + 111943.

It is an arithmetic number, because the mean of its divisors is an integer number (5815732).

Almost surely, 2^23039143 is an apocalyptic number.

23039143 is a deficient number, since it is larger than the sum of its proper divisors (223785).

23039143 is a wasteful number, since it uses less digits than its factorization.

23039143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223784.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 23039143 is about 4799.9107283365. The cubic root of 23039143 is about 284.5479362396.

The spelling of 23039143 in words is "twenty-three million, thirty-nine thousand, one hundred forty-three".