45127765 has 4 divisors (see below), whose sum is σ = 54153324. Its totient is φ = 36102208.

The previous prime is 45127763. The next prime is 45127777. The reversal of 45127765 is 56772154.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56772154 = 2 ⋅28386077.

It can be written as a sum of positive squares in 2 ways, for example, as 6265009 + 38862756 = 2503^2 + 6234^2 .

It is a cyclic number.

It is not a de Polignac number, because 45127765 - 2¹ = 45127763 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45127763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4512772 + ... + 4512781.

It is an arithmetic number, because the mean of its divisors is an integer number (13538331).

Almost surely, 2^45127765 is an apocalyptic number.

It is an amenable number.

45127765 is a deficient number, since it is larger than the sum of its proper divisors (9025559).

45127765 is an equidigital number, since it uses as much as digits as its factorization.

45127765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9025558.

The product of its digits is 58800, while the sum is 37.

The square root of 45127765 is about 6717.7202234091. The cubic root of 45127765 is about 356.0256393813.

The spelling of 45127765 in words is "forty-five million, one hundred twenty-seven thousand, seven hundred sixty-five".