22300155 has 12 divisors (see below), whose sum is σ = 38653680. Its totient is φ = 11893392.

The previous prime is 22300153. The next prime is 22300163. The reversal of 22300155 is 55100322.

It is a happy number.

It is not a de Polignac number, because 22300155 - 2¹ = 22300153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22300151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 247735 + ... + 247824.

It is an arithmetic number, because the mean of its divisors is an integer number (3221140).

Almost surely, 2^22300155 is an apocalyptic number.

22300155 is a deficient number, since it is larger than the sum of its proper divisors (16353525).

22300155 is a wasteful number, since it uses less digits than its factorization.

22300155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495570 (or 495567 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 22300155 is about 4722.3039927561. The cubic root of 22300155 is about 281.4724935712.

Adding to 22300155 its reverse (55100322), we get a palindrome (77400477).

The spelling of 22300155 in words is "twenty-two million, three hundred thousand, one hundred fifty-five".