22457161 has 8 divisors (see below), whose sum is σ = 22809600. Its totient is φ = 22107600.

The previous prime is 22457147. The next prime is 22457167. The reversal of 22457161 is 16175422.

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 22457161 - 2⁵ = 22457129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22457167) 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, 18936 + ... + 20086.

It is an arithmetic number, because the mean of its divisors is an integer number (2851200).

Almost surely, 2^22457161 is an apocalyptic number.

It is an amenable number.

22457161 is a deficient number, since it is larger than the sum of its proper divisors (352439).

22457161 is a wasteful number, since it uses less digits than its factorization.

22457161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439.

The product of its digits is 3360, while the sum is 28.

The square root of 22457161 is about 4738.8987117262. The cubic root of 22457161 is about 282.1315257564.

The spelling of 22457161 in words is "twenty-two million, four hundred fifty-seven thousand, one hundred sixty-one".