4522145 has 8 divisors (see below), whose sum is σ = 5662656. Its totient is φ = 3460336.

The previous prime is 4522129. The next prime is 4522157. The reversal of 4522145 is 5412254.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4522145 - 2⁴ = 4522129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4522145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19547 + ... + 19776.

It is an arithmetic number, because the mean of its divisors is an integer number (707832).

Almost surely, 2^4522145 is an apocalyptic number.

It is an amenable number.

4522145 is a deficient number, since it is larger than the sum of its proper divisors (1140511).

4522145 is a wasteful number, since it uses less digits than its factorization.

4522145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39351.

The product of its digits is 1600, while the sum is 23.

The square root of 4522145 is about 2126.5335642778. The cubic root of 4522145 is about 165.3667385928.

Adding to 4522145 its reverse (5412254), we get a palindrome (9934399).

The spelling of 4522145 in words is "four million, five hundred twenty-two thousand, one hundred forty-five".