22172063 has 4 divisors (see below), whose sum is σ = 23476320. Its totient is φ = 20867808.

The previous prime is 22172057. The next prime is 22172077. The reversal of 22172063 is 36027122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22172063 - 2⁶ = 22171999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22172083) 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, 652103 + ... + 652136.

It is an arithmetic number, because the mean of its divisors is an integer number (5869080).

Almost surely, 2^22172063 is an apocalyptic number.

22172063 is a deficient number, since it is larger than the sum of its proper divisors (1304257).

22172063 is a wasteful number, since it uses less digits than its factorization.

22172063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304256.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 22172063 is about 4708.7220134555. The cubic root of 22172063 is about 280.9325327825.

Adding to 22172063 its reverse (36027122), we get a palindrome (58199185).

The spelling of 22172063 in words is "twenty-two million, one hundred seventy-two thousand, sixty-three".