23215135 has 8 divisors (see below), whose sum is σ = 27903600. Its totient is φ = 18541824.

The previous prime is 23215117. The next prime is 23215139. The reversal of 23215135 is 53151232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23215135 - 2⁵ = 23215103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23215139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85 + ... + 6814.

It is an arithmetic number, because the mean of its divisors is an integer number (3487950).

Almost surely, 2^23215135 is an apocalyptic number.

23215135 is a deficient number, since it is larger than the sum of its proper divisors (4688465).

23215135 is an equidigital number, since it uses as much as digits as its factorization.

23215135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7577.

The product of its digits is 900, while the sum is 22.

The square root of 23215135 is about 4818.2086920348. The cubic root of 23215135 is about 285.2706365300.

Adding to 23215135 its reverse (53151232), we get a palindrome (76366367).

The spelling of 23215135 in words is "twenty-three million, two hundred fifteen thousand, one hundred thirty-five".