23135653 has 4 divisors (see below), whose sum is σ = 23514988. Its totient is φ = 22756320.

The previous prime is 23135633. The next prime is 23135681. The reversal of 23135653 is 35653132.

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 2505889 + 20629764 = 1583^2 + 4542^2 .

It is a cyclic number.

It is not a de Polignac number, because 23135653 - 2¹⁷ = 23004581 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 (23135633) 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, 189576 + ... + 189697.

It is an arithmetic number, because the mean of its divisors is an integer number (5878747).

Almost surely, 2^23135653 is an apocalyptic number.

It is an amenable number.

23135653 is a deficient number, since it is larger than the sum of its proper divisors (379335).

23135653 is an equidigital number, since it uses as much as digits as its factorization.

23135653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379334.

The product of its digits is 8100, while the sum is 28.

The square root of 23135653 is about 4809.9535340791. The cubic root of 23135653 is about 284.9447025166.

Adding to 23135653 its reverse (35653132), we get a palindrome (58788785).

The spelling of 23135653 in words is "twenty-three million, one hundred thirty-five thousand, six hundred fifty-three".