45543145 has 4 divisors (see below), whose sum is σ = 54651780. Its totient is φ = 36434512.

The previous prime is 45543101. The next prime is 45543193. The reversal of 45543145 is 54134554.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54134554 = 2 ⋅27067277.

It can be written as a sum of positive squares in 2 ways, for example, as 10342656 + 35200489 = 3216^2 + 5933^2 .

It is a cyclic number.

It is not a de Polignac number, because 45543145 - 2²¹ = 43445993 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4554310 + ... + 4554319.

It is an arithmetic number, because the mean of its divisors is an integer number (13662945).

Almost surely, 2^45543145 is an apocalyptic number.

It is an amenable number.

45543145 is a deficient number, since it is larger than the sum of its proper divisors (9108635).

45543145 is an equidigital number, since it uses as much as digits as its factorization.

45543145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9108634.

The product of its digits is 24000, while the sum is 31.

The square root of 45543145 is about 6748.5661440042. The cubic root of 45543145 is about 357.1146548016.

Adding to 45543145 its reverse (54134554), we get a palindrome (99677699).

The spelling of 45543145 in words is "forty-five million, five hundred forty-three thousand, one hundred forty-five".