45389965 has 4 divisors (see below), whose sum is σ = 54467964. Its totient is φ = 36311968.

The previous prime is 45389963. The next prime is 45389977. The reversal of 45389965 is 56998354.

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 34140649 + 11249316 = 5843^2 + 3354^2 .

It is a cyclic number.

It is not a de Polignac number, because 45389965 - 2¹ = 45389963 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45389963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4538992 + ... + 4539001.

It is an arithmetic number, because the mean of its divisors is an integer number (13616991).

Almost surely, 2^45389965 is an apocalyptic number.

It is an amenable number.

45389965 is a deficient number, since it is larger than the sum of its proper divisors (9077999).

45389965 is an equidigital number, since it uses as much as digits as its factorization.

45389965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9077998.

The product of its digits is 1166400, while the sum is 49.

The square root of 45389965 is about 6737.2075075657. The cubic root of 45389965 is about 356.7138314584.

The spelling of 45389965 in words is "forty-five million, three hundred eighty-nine thousand, nine hundred sixty-five".