23261535 has 24 divisors (see below), whose sum is σ = 43986384. Its totient is φ = 11278080.

The previous prime is 23261531. The next prime is 23261549. The reversal of 23261535 is 53516232.

It is not a de Polignac number, because 23261535 - 2² = 23261531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23261499 and 23261508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23261531) 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, 23002 + ... + 23991.

It is an arithmetic number, because the mean of its divisors is an integer number (1832766).

Almost surely, 2^23261535 is an apocalyptic number.

23261535 is a deficient number, since it is larger than the sum of its proper divisors (20724849).

23261535 is a wasteful number, since it uses less digits than its factorization.

23261535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47015 (or 47012 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 23261535 is about 4823.0213559552. The cubic root of 23261535 is about 285.4605664858.

Adding to 23261535 its reverse (53516232), we get a palindrome (76777767).

The spelling of 23261535 in words is "twenty-three million, two hundred sixty-one thousand, five hundred thirty-five".