23142743 has 8 divisors (see below), whose sum is σ = 24964128. Its totient is φ = 21327264.

The previous prime is 23142733. The next prime is 23142751. The reversal of 23142743 is 34724132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23142743 - 2⁸ = 23142487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23142733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10046 + ... + 12132.

It is an arithmetic number, because the mean of its divisors is an integer number (3120516).

Almost surely, 2^23142743 is an apocalyptic number.

23142743 is a deficient number, since it is larger than the sum of its proper divisors (1821385).

23142743 is a wasteful number, since it uses less digits than its factorization.

23142743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2953.

The product of its digits is 4032, while the sum is 26.

The square root of 23142743 is about 4810.6904909794. The cubic root of 23142743 is about 284.9738069700.

Adding to 23142743 its reverse (34724132), we get a palindrome (57866875).

The spelling of 23142743 in words is "twenty-three million, one hundred forty-two thousand, seven hundred forty-three".