4521545 has 8 divisors (see below), whose sum is σ = 6201024. Its totient is φ = 3100464.

The previous prime is 4521533. The next prime is 4521551. The reversal of 4521545 is 5451254.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4521545 is a prime.

It is a Duffinian number.

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, 64559 + ... + 64628.

It is an arithmetic number, because the mean of its divisors is an integer number (775128).

Almost surely, 2^4521545 is an apocalyptic number.

It is an amenable number.

4521545 is a deficient number, since it is larger than the sum of its proper divisors (1679479).

4521545 is a wasteful number, since it uses less digits than its factorization.

4521545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129199.

The product of its digits is 4000, while the sum is 26.

The square root of 4521545 is about 2126.3924849378. The cubic root of 4521545 is about 165.3594246277.

Adding to 4521545 its reverse (5451254), we get a palindrome (9972799).

The spelling of 4521545 in words is "four million, five hundred twenty-one thousand, five hundred forty-five".