23243533 has 4 divisors (see below), whose sum is σ = 23267068. Its totient is φ = 23220000.

The previous prime is 23243497. The next prime is 23243543. The reversal of 23243533 is 33534232.

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 23011209 + 232324 = 4797^2 + 482^2 .

It is a cyclic number.

It is not a de Polignac number, because 23243533 - 2⁹ = 23243021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23243498 and 23243507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23243543) 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, 10218 + ... + 12283.

It is an arithmetic number, because the mean of its divisors is an integer number (5816767).

Almost surely, 2^23243533 is an apocalyptic number.

It is an amenable number.

23243533 is a deficient number, since it is larger than the sum of its proper divisors (23535).

23243533 is a wasteful number, since it uses less digits than its factorization.

23243533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23534.

The product of its digits is 6480, while the sum is 25.

The square root of 23243533 is about 4821.1547371973. The cubic root of 23243533 is about 285.3869085876.

Adding to 23243533 its reverse (33534232), we get a palindrome (56777765).

The spelling of 23243533 in words is "twenty-three million, two hundred forty-three thousand, five hundred thirty-three".