445002147 has 16 divisors (see below), whose sum is σ = 666062880. Its totient is φ = 293607936.

The previous prime is 445002143. The next prime is 445002161. The reversal of 445002147 is 741200544.

445002147 is a `hidden beast` number, since 445 + 0 + 0 + 214 + 7 = 666.

It is not a de Polignac number, because 445002147 - 2² = 445002143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 445002147.

It is not an unprimeable number, because it can be changed into a prime (445002143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82338 + ... + 87575.

It is an arithmetic number, because the mean of its divisors is an integer number (41628930).

Almost surely, 2^445002147 is an apocalyptic number.

445002147 is a deficient number, since it is larger than the sum of its proper divisors (221060733).

445002147 is a wasteful number, since it uses less digits than its factorization.

445002147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170019 (or 170013 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 445002147 is about 21095.0739984481. The cubic root of 445002147 is about 763.4618999750.

The spelling of 445002147 in words is "four hundred forty-five million, two thousand, one hundred forty-seven".