22149859 has 8 divisors (see below), whose sum is σ = 22742192. Its totient is φ = 21561120.

The previous prime is 22149833. The next prime is 22149871. The reversal of 22149859 is 95894122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22149859 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (22149889) 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, 15349 + ... + 16729.

It is an arithmetic number, because the mean of its divisors is an integer number (2842774).

Almost surely, 2^22149859 is an apocalyptic number.

22149859 is a deficient number, since it is larger than the sum of its proper divisors (592333).

22149859 is a wasteful number, since it uses less digits than its factorization.

22149859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797.

The product of its digits is 51840, while the sum is 40.

The square root of 22149859 is about 4706.3636706060. The cubic root of 22149859 is about 280.8387223962.

The spelling of 22149859 in words is "twenty-two million, one hundred forty-nine thousand, eight hundred fifty-nine".