22330145 has 8 divisors (see below), whose sum is σ = 27720360. Its totient is φ = 17248000.

The previous prime is 22330141. The next prime is 22330153. The reversal of 22330145 is 54103322.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5740816 + 16589329 = 2396^2 + 4073^2 .

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

It is not a de Polignac number, because 22330145 - 2² = 22330141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22330141) 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, 76856 + ... + 77145.

It is an arithmetic number, because the mean of its divisors is an integer number (3465045).

Almost surely, 2^22330145 is an apocalyptic number.

It is an amenable number.

22330145 is a deficient number, since it is larger than the sum of its proper divisors (5390215).

22330145 is a wasteful number, since it uses less digits than its factorization.

22330145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154035.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 22330145 is about 4725.4782826715. The cubic root of 22330145 is about 281.5986149491.

Adding to 22330145 its reverse (54103322), we get a palindrome (76433467).

The spelling of 22330145 in words is "twenty-two million, three hundred thirty thousand, one hundred forty-five".