4521145 has 8 divisors (see below), whose sum is σ = 5711040. Its totient is φ = 3426480.

The previous prime is 4521113. The next prime is 4521151. The reversal of 4521145 is 5411254.

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

It is not a de Polignac number, because 4521145 - 2⁵ = 4521113 is a prime.

It is a super-2 number, since 2×4521145² = 40881504222050, which contains 22 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23701 + ... + 23890.

It is an arithmetic number, because the mean of its divisors is an integer number (713880).

Almost surely, 2^4521145 is an apocalyptic number.

It is an amenable number.

4521145 is a deficient number, since it is larger than the sum of its proper divisors (1189895).

4521145 is a wasteful number, since it uses less digits than its factorization.

4521145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47615.

The product of its digits is 800, while the sum is 22.

The square root of 4521145 is about 2126.2984268442. The cubic root of 4521145 is about 165.3545482915.

Adding to 4521145 its reverse (5411254), we get a palindrome (9932399).

The spelling of 4521145 in words is "four million, five hundred twenty-one thousand, one hundred forty-five".