4521122145 has 48 divisors (see below), whose sum is σ = 7977640320. Its totient is φ = 2368092672.

The previous prime is 4521122117. The next prime is 4521122153. The reversal of 4521122145 is 5412211254.

It is a happy number.

4521122145 is a `hidden beast` number, since 4 + 521 + 122 + 14 + 5 = 666.

It is not a de Polignac number, because 4521122145 - 2⁵ = 4521122113 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1080297 + ... + 1084473.

It is an arithmetic number, because the mean of its divisors is an integer number (166200840).

Almost surely, 2^4521122145 is an apocalyptic number.

4521122145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4521122145 is a deficient number, since it is larger than the sum of its proper divisors (3456518175).

4521122145 is a wasteful number, since it uses less digits than its factorization.

4521122145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4614 (or 4611 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 4521122145 is about 67239.2901881036. The cubic root of 4521122145 is about 1653.5426966116.

Adding to 4521122145 its reverse (5412211254), we get a palindrome (9933333399).

The spelling of 4521122145 in words is "four billion, five hundred twenty-one million, one hundred twenty-two thousand, one hundred forty-five".