23135855 has 8 divisors (see below), whose sum is σ = 27963600. Its totient is φ = 18374976.

The previous prime is 23135851. The next prime is 23135867. The reversal of 23135855 is 55853132.

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 23135855 - 2² = 23135851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23135851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15950 + ... + 17339.

It is an arithmetic number, because the mean of its divisors is an integer number (3495450).

Almost surely, 2^23135855 is an apocalyptic number.

23135855 is a deficient number, since it is larger than the sum of its proper divisors (4827745).

23135855 is a wasteful number, since it uses less digits than its factorization.

23135855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33433.

The product of its digits is 18000, while the sum is 32.

The square root of 23135855 is about 4809.9745321571. The cubic root of 23135855 is about 284.9455318090.

Adding to 23135855 its reverse (55853132), we get a palindrome (78988987).

The spelling of 23135855 in words is "twenty-three million, one hundred thirty-five thousand, eight hundred fifty-five".