23143134 has 16 divisors (see below), whose sum is σ = 52898688. Its totient is φ = 6612312.

The previous prime is 23143111. The next prime is 23143151. The reversal of 23143134 is 43134132.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 23143134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275472 + ... + 275555.

It is an arithmetic number, because the mean of its divisors is an integer number (3306168).

Almost surely, 2^23143134 is an apocalyptic number.

23143134 is an abundant number, since it is smaller than the sum of its proper divisors (29755554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23143134 is a wasteful number, since it uses less digits than its factorization.

23143134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551039.

The product of its digits is 864, while the sum is 21.

The square root of 23143134 is about 4810.7311294646. The cubic root of 23143134 is about 284.9754118523.

Adding to 23143134 its reverse (43134132), we get a palindrome (66277266).

It can be divided in two parts, 231 and 43134, that added together give a triangular number (43365 = T₂₉₄).

The spelling of 23143134 in words is "twenty-three million, one hundred forty-three thousand, one hundred thirty-four".