22415145 has 8 divisors (see below), whose sum is σ = 35864256. Its totient is φ = 11954736.

The previous prime is 22415143. The next prime is 22415177. The reversal of 22415145 is 54151422.

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

It is not a de Polignac number, because 22415145 - 2¹ = 22415143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22415143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 747157 + ... + 747186.

It is an arithmetic number, because the mean of its divisors is an integer number (4483032).

Almost surely, 2^22415145 is an apocalyptic number.

It is an amenable number.

22415145 is a deficient number, since it is larger than the sum of its proper divisors (13449111).

22415145 is a wasteful number, since it uses less digits than its factorization.

22415145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494351.

The product of its digits is 1600, while the sum is 24.

The square root of 22415145 is about 4734.4635387761. The cubic root of 22415145 is about 281.9554655291.

Adding to 22415145 its reverse (54151422), we get a palindrome (76566567).

The spelling of 22415145 in words is "twenty-two million, four hundred fifteen thousand, one hundred forty-five".