23223161 has 8 divisors (see below), whose sum is σ = 25686024. Its totient is φ = 20856960.

The previous prime is 23223157. The next prime is 23223181. The reversal of 23223161 is 16132232.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3367225 + 19855936 = 1835^2 + 4456^2 .

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 23223161 - 2² = 23223157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23223181) 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, 23660 + ... + 24621.

It is an arithmetic number, because the mean of its divisors is an integer number (3210753).

Almost surely, 2^23223161 is an apocalyptic number.

It is an amenable number.

23223161 is a deficient number, since it is larger than the sum of its proper divisors (2462863).

23223161 is a wasteful number, since it uses less digits than its factorization.

23223161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48331.

The product of its digits is 432, while the sum is 20.

The square root of 23223161 is about 4819.0415022077. The cubic root of 23223161 is about 285.3035075906.

Adding to 23223161 its reverse (16132232), we get a palindrome (39355393).

The spelling of 23223161 in words is "twenty-three million, two hundred twenty-three thousand, one hundred sixty-one".