23531135 has 8 divisors (see below), whose sum is σ = 28407456. Its totient is φ = 18711520.

The previous prime is 23531117. The next prime is 23531141. The reversal of 23531135 is 53113532.

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

It is not a de Polignac number, because 23531135 - 2¹² = 23527039 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23531135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13256 + ... + 14925.

It is an arithmetic number, because the mean of its divisors is an integer number (3550932).

Almost surely, 2^23531135 is an apocalyptic number.

23531135 is a deficient number, since it is larger than the sum of its proper divisors (4876321).

23531135 is a wasteful number, since it uses less digits than its factorization.

23531135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28353.

The product of its digits is 1350, while the sum is 23.

The square root of 23531135 is about 4850.8901245029. The cubic root of 23531135 is about 286.5591576005.

Adding to 23531135 its reverse (53113532), we get a palindrome (76644667).

The spelling of 23531135 in words is "twenty-three million, five hundred thirty-one thousand, one hundred thirty-five".