22158249 has 8 divisors (see below), whose sum is σ = 29592192. Its totient is φ = 14748240.

The previous prime is 22158247. The next prime is 22158271. The reversal of 22158249 is 94285122.

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

It is not a de Polignac number, because 22158249 - 2¹ = 22158247 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22158247) 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, 3697 + ... + 7614.

It is an arithmetic number, because the mean of its divisors is an integer number (3699024).

Almost surely, 2^22158249 is an apocalyptic number.

It is an amenable number.

22158249 is a deficient number, since it is larger than the sum of its proper divisors (7433943).

22158249 is a wasteful number, since it uses less digits than its factorization.

22158249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11967.

The product of its digits is 11520, while the sum is 33.

The square root of 22158249 is about 4707.2549325483. The cubic root of 22158249 is about 280.8741769400.

The spelling of 22158249 in words is "twenty-two million, one hundred fifty-eight thousand, two hundred forty-nine".