22237143 has 4 divisors (see below), whose sum is σ = 29649528. Its totient is φ = 14824760.

The previous prime is 22237133. The next prime is 22237151. The reversal of 22237143 is 34173222.

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 22237143 - 2⁸ = 22236887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22237133) 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, 3706188 + ... + 3706193.

It is an arithmetic number, because the mean of its divisors is an integer number (7412382).

Almost surely, 2^22237143 is an apocalyptic number.

22237143 is a deficient number, since it is larger than the sum of its proper divisors (7412385).

22237143 is an equidigital number, since it uses as much as digits as its factorization.

22237143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7412384.

The product of its digits is 2016, while the sum is 24.

The square root of 22237143 is about 4715.6275298204. The cubic root of 22237143 is about 281.2071310464.

The spelling of 22237143 in words is "twenty-two million, two hundred thirty-seven thousand, one hundred forty-three".