5145443185 has 4 divisors (see below), whose sum is σ = 6174531828. Its totient is φ = 4116354544.

The previous prime is 5145443131. The next prime is 5145443213. The reversal of 5145443185 is 5813445415.

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 2254445361 + 2890997824 = 47481^2 + 53768^2 .

It is a cyclic number.

It is not a de Polignac number, because 5145443185 - 2¹³ = 5145434993 is a prime.

It is a Duffinian number.

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, 514544314 + ... + 514544323.

It is an arithmetic number, because the mean of its divisors is an integer number (1543632957).

Almost surely, 2^5145443185 is an apocalyptic number.

It is an amenable number.

5145443185 is a deficient number, since it is larger than the sum of its proper divisors (1029088643).

5145443185 is a wasteful number, since it uses less digits than its factorization.

5145443185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029088642.

The product of its digits is 192000, while the sum is 40.

The square root of 5145443185 is about 71731.7446114341. The cubic root of 5145443185 is about 1726.3980192339.

The spelling of 5145443185 in words is "five billion, one hundred forty-five million, four hundred forty-three thousand, one hundred eighty-five".