23145835 has 4 divisors (see below), whose sum is σ = 27775008. Its totient is φ = 18516664.

The previous prime is 23145827. The next prime is 23145883. The reversal of 23145835 is 53854132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23145835 - 2³ = 23145827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23145797 and 23145806.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2314579 + ... + 2314588.

It is an arithmetic number, because the mean of its divisors is an integer number (6943752).

Almost surely, 2^23145835 is an apocalyptic number.

23145835 is a deficient number, since it is larger than the sum of its proper divisors (4629173).

23145835 is an equidigital number, since it uses as much as digits as its factorization.

23145835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4629172.

The product of its digits is 14400, while the sum is 31.

The square root of 23145835 is about 4811.0118478341. The cubic root of 23145835 is about 284.9864977701.

Adding to 23145835 its reverse (53854132), we get a palindrome (76999967).

The spelling of 23145835 in words is "twenty-three million, one hundred forty-five thousand, eight hundred thirty-five".