22265161 has 8 divisors (see below), whose sum is σ = 23039744. Its totient is φ = 21494160.

The previous prime is 22265077. The next prime is 22265167. The reversal of 22265161 is 16156222.

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

It is not a de Polignac number, because 22265161 - 2¹¹ = 22263113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22265167) 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, 19375 + ... + 20491.

It is an arithmetic number, because the mean of its divisors is an integer number (2879968).

Almost surely, 2^22265161 is an apocalyptic number.

It is an amenable number.

22265161 is a deficient number, since it is larger than the sum of its proper divisors (774583).

22265161 is a wasteful number, since it uses less digits than its factorization.

22265161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791.

The product of its digits is 1440, while the sum is 25.

The square root of 22265161 is about 4718.5973551470. The cubic root of 22265161 is about 281.3251851010.

The spelling of 22265161 in words is "twenty-two million, two hundred sixty-five thousand, one hundred sixty-one".