4022505145 has 4 divisors (see below), whose sum is σ = 4827006180. Its totient is φ = 3218004112.

The previous prime is 4022505139. The next prime is 4022505187. The reversal of 4022505145 is 5415052204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 680740281 + 3341764864 = 26091^2 + 57808^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4022505145 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402250510 + ... + 402250519.

It is an arithmetic number, because the mean of its divisors is an integer number (1206751545).

Almost surely, 2^4022505145 is an apocalyptic number.

It is an amenable number.

4022505145 is a deficient number, since it is larger than the sum of its proper divisors (804501035).

4022505145 is an equidigital number, since it uses as much as digits as its factorization.

4022505145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804501034.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 4022505145 is about 63423.2224425722. Note that the first 3 decimals coincide. The cubic root of 4022505145 is about 1590.3725436660.

Adding to 4022505145 its reverse (5415052204), we get a palindrome (9437557349).

The spelling of 4022505145 in words is "four billion, twenty-two million, five hundred five thousand, one hundred forty-five".