23143869 has 24 divisors (see below), whose sum is σ = 38555712. Its totient is φ = 13104000.

The previous prime is 23143867. The next prime is 23143873. The reversal of 23143869 is 96834132.

It is not a de Polignac number, because 23143869 - 2¹ = 23143867 is a prime.

It is a super-2 number, since 2×23143869² = 1071277344578322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23143867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5494 + ... + 8744.

It is an arithmetic number, because the mean of its divisors is an integer number (1606488).

Almost surely, 2^23143869 is an apocalyptic number.

It is an amenable number.

23143869 is a deficient number, since it is larger than the sum of its proper divisors (15411843).

23143869 is a wasteful number, since it uses less digits than its factorization.

23143869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377 (or 3374 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 23143869 is about 4810.8075205728. The cubic root of 23143869 is about 284.9784286536.

It can be divided in two parts, 231 and 43869, that added together give a square (44100 = 210²).

The spelling of 23143869 in words is "twenty-three million, one hundred forty-three thousand, eight hundred sixty-nine".