22150545 has 8 divisors (see below), whose sum is σ = 35440896. Its totient is φ = 11813616.

The previous prime is 22150543. The next prime is 22150549. The reversal of 22150545 is 54505122.

It is a happy number.

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

It is not a de Polignac number, because 22150545 - 2¹ = 22150543 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22150543) 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, 738337 + ... + 738366.

It is an arithmetic number, because the mean of its divisors is an integer number (4430112).

Almost surely, 2^22150545 is an apocalyptic number.

It is an amenable number.

22150545 is a deficient number, since it is larger than the sum of its proper divisors (13290351).

22150545 is a wasteful number, since it uses less digits than its factorization.

22150545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476711.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 22150545 is about 4706.4365500876. The cubic root of 22150545 is about 280.8416216377.

Adding to 22150545 its reverse (54505122), we get a palindrome (76655667).

The spelling of 22150545 in words is "twenty-two million, one hundred fifty thousand, five hundred forty-five".