23135305 has 4 divisors (see below), whose sum is σ = 27762372. Its totient is φ = 18508240.

The previous prime is 23135303. The next prime is 23135339. The reversal of 23135305 is 50353132.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14961424 + 8173881 = 3868^2 + 2859^2 .

It is not a de Polignac number, because 23135305 - 2¹ = 23135303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23135303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2313526 + ... + 2313535.

It is an arithmetic number, because the mean of its divisors is an integer number (6940593).

Almost surely, 2^23135305 is an apocalyptic number.

It is an amenable number.

23135305 is a deficient number, since it is larger than the sum of its proper divisors (4627067).

23135305 is an equidigital number, since it uses as much as digits as its factorization.

23135305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4627066.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 23135305 is about 4809.9173589574. The cubic root of 23135305 is about 284.9432738234.

Adding to 23135305 its reverse (50353132), we get a palindrome (73488437).

The spelling of 23135305 in words is "twenty-three million, one hundred thirty-five thousand, three hundred five".