22605143 has 8 divisors (see below), whose sum is σ = 25234176. Its totient is φ = 20071800.

The previous prime is 22605131. The next prime is 22605151. The reversal of 22605143 is 34150622.

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 22605143 - 2⁴ = 22605127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22605103) 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, 23423 + ... + 24368.

It is an arithmetic number, because the mean of its divisors is an integer number (3154272).

Almost surely, 2^22605143 is an apocalyptic number.

22605143 is a deficient number, since it is larger than the sum of its proper divisors (2629033).

22605143 is a wasteful number, since it uses less digits than its factorization.

22605143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47845.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 22605143 is about 4754.4866179221. The cubic root of 22605143 is about 282.7498736802.

Adding to 22605143 its reverse (34150622), we get a palindrome (56755765).

The spelling of 22605143 in words is "twenty-two million, six hundred five thousand, one hundred forty-three".