23143435 has 12 divisors (see below), whose sum is σ = 32306688. Its totient is φ = 15869616.

The previous prime is 23143429. The next prime is 23143459. The reversal of 23143435 is 53434132.

It is a de Polignac number, because none of the positive numbers 2^k-23143435 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46987 + ... + 47476.

It is an arithmetic number, because the mean of its divisors is an integer number (2692224).

Almost surely, 2^23143435 is an apocalyptic number.

23143435 is a deficient number, since it is larger than the sum of its proper divisors (9163253).

23143435 is an equidigital number, since it uses as much as digits as its factorization.

23143435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94482 (or 94475 counting only the distinct ones).

The product of its digits is 4320, while the sum is 25.

The square root of 23143435 is about 4810.7624135889. The cubic root of 23143435 is about 284.9766473120.

Multiplying 23143435 by its sum of digits (25), we get a palindrome (578585875).

Adding to 23143435 its reverse (53434132), we get a palindrome (76577567).

The spelling of 23143435 in words is "twenty-three million, one hundred forty-three thousand, four hundred thirty-five".