22399161 has 8 divisors (see below), whose sum is σ = 30594144. Its totient is φ = 14568480.

The previous prime is 22399159. The next prime is 22399163. The reversal of 22399161 is 16199322.

It is an interprime number because it is at equal distance from previous prime (22399159) and next prime (22399163).

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

It is not a de Polignac number, because 22399161 - 2¹ = 22399159 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22399163) 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, 90931 + ... + 91176.

It is an arithmetic number, because the mean of its divisors is an integer number (3824268).

Almost surely, 2^22399161 is an apocalyptic number.

It is an amenable number.

22399161 is a deficient number, since it is larger than the sum of its proper divisors (8194983).

22399161 is a wasteful number, since it uses less digits than its factorization.

22399161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182151.

The product of its digits is 5832, while the sum is 33.

The square root of 22399161 is about 4732.7751900972. The cubic root of 22399161 is about 281.8884297841. Note that the first 3 decimals are identical.

The spelling of 22399161 in words is "twenty-two million, three hundred ninety-nine thousand, one hundred sixty-one".