22150045 has 16 divisors (see below), whose sum is σ = 27433728. Its totient is φ = 17157760.

The previous prime is 22150001. The next prime is 22150061. The reversal of 22150045 is 54005122.

It is not a de Polignac number, because 22150045 - 2¹¹ = 22147997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33912 + ... + 34558.

It is an arithmetic number, because the mean of its divisors is an integer number (1714608).

Almost surely, 2^22150045 is an apocalyptic number.

It is an amenable number.

22150045 is a deficient number, since it is larger than the sum of its proper divisors (5283683).

22150045 is a wasteful number, since it uses less digits than its factorization.

22150045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 22150045 is about 4706.3834310434. The cubic root of 22150045 is about 280.8395084938.

Adding to 22150045 its reverse (54005122), we get a palindrome (76155167).

The spelling of 22150045 in words is "twenty-two million, one hundred fifty thousand, forty-five".