22289143 has 4 divisors (see below), whose sum is σ = 22305880. Its totient is φ = 22272408.

The previous prime is 22289131. The next prime is 22289153. The reversal of 22289143 is 34198222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22289143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22289123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6180 + ... + 9097.

It is an arithmetic number, because the mean of its divisors is an integer number (5576470).

Almost surely, 2^22289143 is an apocalyptic number.

22289143 is a deficient number, since it is larger than the sum of its proper divisors (16737).

22289143 is a wasteful number, since it uses less digits than its factorization.

22289143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16736.

The product of its digits is 6912, while the sum is 31.

The square root of 22289143 is about 4721.1378925001. The cubic root of 22289143 is about 281.4261547985.

The spelling of 22289143 in words is "twenty-two million, two hundred eighty-nine thousand, one hundred forty-three".