5481445 has 4 divisors (see below), whose sum is σ = 6577740. Its totient is φ = 4385152.

The previous prime is 5481431. The next prime is 5481461. The reversal of 5481445 is 5441845.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2719201 + 2762244 = 1649^2 + 1662^2 .

It is a cyclic number.

It is not a de Polignac number, because 5481445 - 2⁷ = 5481317 is a prime.

5481445 is a lucky number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 548140 + ... + 548149.

It is an arithmetic number, because the mean of its divisors is an integer number (1644435).

Almost surely, 2^5481445 is an apocalyptic number.

It is an amenable number.

5481445 is a deficient number, since it is larger than the sum of its proper divisors (1096295).

5481445 is a wasteful number, since it uses less digits than its factorization.

5481445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096294.

The product of its digits is 12800, while the sum is 31.

The square root of 5481445 is about 2341.2485985047. The cubic root of 5481445 is about 176.3186912639.

Subtracting from 5481445 its product of digits (12800), we obtain a palindrome (5468645).

The spelling of 5481445 in words is "five million, four hundred eighty-one thousand, four hundred forty-five".