45047665 has 8 divisors (see below), whose sum is σ = 58215528. Its totient is φ = 33265920.

The previous prime is 45047663. The next prime is 45047687. The reversal of 45047665 is 56674054.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 944784 + 44102881 = 972^2 + 6641^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45047665 - 2¹ = 45047663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45047663) 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 7 ways as a sum of consecutive naturals, for example, 346456 + ... + 346585.

It is an arithmetic number, because the mean of its divisors is an integer number (7276941).

Almost surely, 2^45047665 is an apocalyptic number.

It is an amenable number.

45047665 is a deficient number, since it is larger than the sum of its proper divisors (13167863).

45047665 is a wasteful number, since it uses less digits than its factorization.

45047665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693059.

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 45047665 is about 6711.7557315504. The cubic root of 45047665 is about 355.8148708154.

The spelling of 45047665 in words is "forty-five million, forty-seven thousand, six hundred sixty-five".