445317653 has 4 divisors (see below), whose sum is σ = 485801088. Its totient is φ = 404834220.

The previous prime is 445317643. The next prime is 445317661. The reversal of 445317653 is 356713544.

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 a cyclic number.

It is not a de Polignac number, because 445317653 - 2¹⁰ = 445316629 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 (445317643) 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, 20241701 + ... + 20241722.

It is an arithmetic number, because the mean of its divisors is an integer number (121450272).

Almost surely, 2^445317653 is an apocalyptic number.

It is an amenable number.

445317653 is a deficient number, since it is larger than the sum of its proper divisors (40483435).

445317653 is a wasteful number, since it uses less digits than its factorization.

445317653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40483434.

The product of its digits is 151200, while the sum is 38.

The square root of 445317653 is about 21102.5508647651. The cubic root of 445317653 is about 763.6422885470.

The spelling of 445317653 in words is "four hundred forty-five million, three hundred seventeen thousand, six hundred fifty-three".