45727445 has 4 divisors (see below), whose sum is σ = 54872940. Its totient is φ = 36581952.

The previous prime is 45727441. The next prime is 45727457. The reversal of 45727445 is 54472754.

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 20557156 + 25170289 = 4534^2 + 5017^2 .

It is a cyclic number.

It is not a de Polignac number, because 45727445 - 2² = 45727441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45727399 and 45727408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45727441) 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 3 ways as a sum of consecutive naturals, for example, 4572740 + ... + 4572749.

It is an arithmetic number, because the mean of its divisors is an integer number (13718235).

Almost surely, 2^45727445 is an apocalyptic number.

It is an amenable number.

45727445 is a deficient number, since it is larger than the sum of its proper divisors (9145495).

45727445 is an equidigital number, since it uses as much as digits as its factorization.

45727445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9145494.

The product of its digits is 156800, while the sum is 38.

The square root of 45727445 is about 6762.2071101084. The cubic root of 45727445 is about 357.5957198821.

The spelling of 45727445 in words is "forty-five million, seven hundred twenty-seven thousand, four hundred forty-five".