23135445 has 24 divisors (see below), whose sum is σ = 42213600. Its totient is φ = 11689056.

The previous prime is 23135443. The next prime is 23135449. The reversal of 23135445 is 54453132.

It is not a de Polignac number, because 23135445 - 2¹ = 23135443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23135443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12675 + ... + 14384.

It is an arithmetic number, because the mean of its divisors is an integer number (1758900).

Almost surely, 2^23135445 is an apocalyptic number.

It is an amenable number.

23135445 is a deficient number, since it is larger than the sum of its proper divisors (19078155).

23135445 is a wasteful number, since it uses less digits than its factorization.

23135445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27089 (or 27086 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 23135445 is about 4809.9319122000. The cubic root of 23135445 is about 284.9438485868.

Adding to 23135445 its reverse (54453132), we get a palindrome (77588577).

The spelling of 23135445 in words is "twenty-three million, one hundred thirty-five thousand, four hundred forty-five".