22606191 has 6 divisors (see below), whose sum is σ = 32653400. Its totient is φ = 15070788.

The previous prime is 22606189. The next prime is 22606231. The reversal of 22606191 is 19160622.

It is not a de Polignac number, because 22606191 - 2¹ = 22606189 is a prime.

It is a super-2 number, since 2×22606191² = 1022079743056962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22606121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1255891 + ... + 1255908.

Almost surely, 2^22606191 is an apocalyptic number.

22606191 is a deficient number, since it is larger than the sum of its proper divisors (10047209).

22606191 is a wasteful number, since it uses less digits than its factorization.

22606191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511805 (or 2511802 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 22606191 is about 4754.5968283336. The cubic root of 22606191 is about 282.7542431473.

The spelling of 22606191 in words is "twenty-two million, six hundred six thousand, one hundred ninety-one".