22145159 has 8 divisors (see below), whose sum is σ = 23339232. Its totient is φ = 20970400.

The previous prime is 22145153. The next prime is 22145161. The reversal of 22145159 is 95154122.

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 22145159 - 2¹⁶ = 22079623 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 (22145153) 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, 2444 + ... + 7089.

It is an arithmetic number, because the mean of its divisors is an integer number (2917404).

Almost surely, 2^22145159 is an apocalyptic number.

22145159 is a deficient number, since it is larger than the sum of its proper divisors (1194073).

22145159 is a wasteful number, since it uses less digits than its factorization.

22145159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9657.

The product of its digits is 3600, while the sum is 29.

The square root of 22145159 is about 4705.8643201860. The cubic root of 22145159 is about 280.8188571777.

The spelling of 22145159 in words is "twenty-two million, one hundred forty-five thousand, one hundred fifty-nine".