5145545445 has 8 divisors (see below), whose sum is σ = 8232872736. Its totient is φ = 2744290896.

The previous prime is 5145545443. The next prime is 5145545453. The reversal of 5145545445 is 5445455415.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5145545445 - 2¹ = 5145545443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5145545397 and 5145545406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5145545443) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 171518167 + ... + 171518196.

It is an arithmetic number, because the mean of its divisors is an integer number (1029109092).

Almost surely, 2^5145545445 is an apocalyptic number.

It is an amenable number.

5145545445 is a deficient number, since it is larger than the sum of its proper divisors (3087327291).

5145545445 is a wasteful number, since it uses less digits than its factorization.

5145545445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343036371.

The product of its digits is 800000, while the sum is 42.

The square root of 5145545445 is about 71732.4574024897. The cubic root of 5145545445 is about 1726.4094559094.

The spelling of 5145545445 in words is "five billion, one hundred forty-five million, five hundred forty-five thousand, four hundred forty-five".