45519947 has 8 divisors (see below), whose sum is σ = 49993200. Its totient is φ = 41102560.

The previous prime is 45519941. The next prime is 45519949. The reversal of 45519947 is 74991554.

45519947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 45519947 - 2⁶ = 45519883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45519898 and 45519907.

It is not an unprimeable number, because it can be changed into a prime (45519941) by changing a digit.

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, 12248 + ... + 15525.

It is an arithmetic number, because the mean of its divisors is an integer number (6249150).

Almost surely, 2^45519947 is an apocalyptic number.

45519947 is a deficient number, since it is larger than the sum of its proper divisors (4473253).

45519947 is a wasteful number, since it uses less digits than its factorization.

45519947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27933.

The product of its digits is 226800, while the sum is 44.

The square root of 45519947 is about 6746.8471896138. The cubic root of 45519947 is about 357.0540108215.

It can be divided in two parts, 455 and 19947, that added together give a palindrome (20402).

The spelling of 45519947 in words is "forty-five million, five hundred nineteen thousand, nine hundred forty-seven".