45190445 has 8 divisors (see below), whose sum is σ = 54349944. Its totient is φ = 36071424.

The previous prime is 45190433. The next prime is 45190499. The reversal of 45190445 is 54409154.

45190445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10745284 + 34445161 = 3278^2 + 5869^2 .

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 45190445 - 2¹⁴ = 45174061 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 7604 + ... + 12173.

It is an arithmetic number, because the mean of its divisors is an integer number (6793743).

Almost surely, 2^45190445 is an apocalyptic number.

It is an amenable number.

45190445 is a deficient number, since it is larger than the sum of its proper divisors (9159499).

45190445 is a wasteful number, since it uses less digits than its factorization.

45190445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20239.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 45190445 is about 6722.3838777624. The cubic root of 45190445 is about 356.1903965125.

Adding to 45190445 its reverse (54409154), we get a palindrome (99599599).

The spelling of 45190445 in words is "forty-five million, one hundred ninety thousand, four hundred forty-five".