4451545 has 16 divisors (see below), whose sum is σ = 6145920. Its totient is φ = 3032064.

The previous prime is 4451543. The next prime is 4451563. The reversal of 4451545 is 5451544.

It is not a de Polignac number, because 4451545 - 2¹ = 4451543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4451543) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6426 + ... + 7084.

It is an arithmetic number, because the mean of its divisors is an integer number (384120).

Almost surely, 2^4451545 is an apocalyptic number.

It is an amenable number.

4451545 is a deficient number, since it is larger than the sum of its proper divisors (1694375).

4451545 is a wasteful number, since it uses less digits than its factorization.

4451545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864.

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

The square root of 4451545 is about 2109.8684793133. The cubic root of 4451545 is about 164.5016490813.

Subtracting 4451545 from its reverse (5451544), we obtain a palindrome (999999).

The spelling of 4451545 in words is "four million, four hundred fifty-one thousand, five hundred forty-five".