22149143 has 8 divisors (see below), whose sum is σ = 22752576. Its totient is φ = 21548800.

The previous prime is 22149137. The next prime is 22149157. The reversal of 22149143 is 34194122.

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 22149143 - 2¹⁸ = 21886999 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 (22148143) 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 7 ways as a sum of consecutive naturals, for example, 23858 + ... + 24768.

It is an arithmetic number, because the mean of its divisors is an integer number (2844072).

Almost surely, 2^22149143 is an apocalyptic number.

22149143 is a deficient number, since it is larger than the sum of its proper divisors (603433).

22149143 is an equidigital number, since it uses as much as digits as its factorization.

22149143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545.

The product of its digits is 1728, while the sum is 26.

The square root of 22149143 is about 4706.2876027714. The cubic root of 22149143 is about 280.8356963018.

The spelling of 22149143 in words is "twenty-two million, one hundred forty-nine thousand, one hundred forty-three".