23162201 has 4 divisors (see below), whose sum is σ = 23197092. Its totient is φ = 23127312.

The previous prime is 23162189. The next prime is 23162203. The reversal of 23162201 is 10226132.

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 22080601 + 1081600 = 4699^2 + 1040^2 .

It is a cyclic number.

It is not a de Polignac number, because 23162201 - 2¹⁴ = 23145817 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 23162201.

It is not an unprimeable number, because it can be changed into a prime (23162203) 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 3 ways as a sum of consecutive naturals, for example, 16430 + ... + 17783.

It is an arithmetic number, because the mean of its divisors is an integer number (5799273).

Almost surely, 2^23162201 is an apocalyptic number.

It is an amenable number.

23162201 is a deficient number, since it is larger than the sum of its proper divisors (34891).

23162201 is an equidigital number, since it uses as much as digits as its factorization.

23162201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34890.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 23162201 is about 4812.7124368697. The cubic root of 23162201 is about 285.0536515389.

Adding to 23162201 its reverse (10226132), we get a palindrome (33388333).

The spelling of 23162201 in words is "twenty-three million, one hundred sixty-two thousand, two hundred one".