23455143 has 16 divisors (see below), whose sum is σ = 34832640. Its totient is φ = 15598872.

The previous prime is 23455141. The next prime is 23455153. The reversal of 23455143 is 34155432.

It is not a de Polignac number, because 23455143 - 2¹ = 23455141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23455141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14430 + ... + 15972.

It is an arithmetic number, because the mean of its divisors is an integer number (2177040).

Almost surely, 2^23455143 is an apocalyptic number.

23455143 is a deficient number, since it is larger than the sum of its proper divisors (11377497).

23455143 is a wasteful number, since it uses less digits than its factorization.

23455143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115 (or 2109 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 23455143 is about 4843.0510011768. The cubic root of 23455143 is about 286.2503513150.

The spelling of 23455143 in words is "twenty-three million, four hundred fifty-five thousand, one hundred forty-three".