23531201 has 8 divisors (see below), whose sum is σ = 24388608. Its totient is φ = 22680000.

The previous prime is 23531143. The next prime is 23531203. The reversal of 23531201 is 10213532.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23531201 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 23531201.

It is not an unprimeable number, because it can be changed into a prime (23531203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7001 + ... + 9801.

It is an arithmetic number, because the mean of its divisors is an integer number (3048576).

Almost surely, 2^23531201 is an apocalyptic number.

23531201 is the 2801-st octagonal number.

It is an amenable number.

23531201 is a deficient number, since it is larger than the sum of its proper divisors (857407).

23531201 is a wasteful number, since it uses less digits than its factorization.

23531201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 23531201 is about 4850.8969273733. The cubic root of 23531201 is about 286.5594255135.

Adding to 23531201 its reverse (10213532), we get a palindrome (33744733).

It can be divided in two parts, 23531 and 201, that added together give a palindrome (23732).

The spelling of 23531201 in words is "twenty-three million, five hundred thirty-one thousand, two hundred one".