22850161 has 4 divisors (see below), whose sum is σ = 23407524. Its totient is φ = 22292800.

The previous prime is 22850153. The next prime is 22850167. The reversal of 22850161 is 16105822.

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 10112400 + 12737761 = 3180^2 + 3569^2 .

It is a cyclic number.

It is not a de Polignac number, because 22850161 - 2³ = 22850153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22850167) 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, 278620 + ... + 278701.

It is an arithmetic number, because the mean of its divisors is an integer number (5851881).

Almost surely, 2^22850161 is an apocalyptic number.

It is an amenable number.

22850161 is a deficient number, since it is larger than the sum of its proper divisors (557363).

22850161 is an equidigital number, since it uses as much as digits as its factorization.

22850161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557362.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 22850161 is about 4780.1842014717. The cubic root of 22850161 is about 283.7677836280.

Adding to 22850161 its reverse (16105822), we get a palindrome (38955983).

The spelling of 22850161 in words is "twenty-two million, eight hundred fifty thousand, one hundred sixty-one".