445455613 has 8 divisors (see below), whose sum is σ = 455800320. Its totient is φ = 435147120.

The previous prime is 445455601. The next prime is 445455643. The reversal of 445455613 is 316554544.

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

It is a cyclic number.

It is not a de Polignac number, because 445455613 - 2⁵ = 445455581 is a prime.

It is a super-3 number, since 3×445455613³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445455643) 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, 16668 + ... + 34186.

It is an arithmetic number, because the mean of its divisors is an integer number (56975040).

Almost surely, 2^445455613 is an apocalyptic number.

It is an amenable number.

445455613 is a deficient number, since it is larger than the sum of its proper divisors (10344707).

445455613 is a wasteful number, since it uses less digits than its factorization.

445455613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18107.

The product of its digits is 144000, while the sum is 37.

The square root of 445455613 is about 21105.8194107692. The cubic root of 445455613 is about 763.7211395364.

The spelling of 445455613 in words is "four hundred forty-five million, four hundred fifty-five thousand, six hundred thirteen".