45065649 has 4 divisors (see below), whose sum is σ = 60087536. Its totient is φ = 30043764.

The previous prime is 45065639. The next prime is 45065651. The reversal of 45065649 is 94656054.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 45065649 - 2⁴ = 45065633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45065609) 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, 7510939 + ... + 7510944.

It is an arithmetic number, because the mean of its divisors is an integer number (15021884).

Almost surely, 2^45065649 is an apocalyptic number.

It is an amenable number.

45065649 is a deficient number, since it is larger than the sum of its proper divisors (15021887).

45065649 is a wasteful number, since it uses less digits than its factorization.

45065649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15021886.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 45065649 is about 6713.0953367281. The cubic root of 45065649 is about 355.8622141741.

The spelling of 45065649 in words is "forty-five million, sixty-five thousand, six hundred forty-nine".