445197 has 4 divisors (see below), whose sum is σ = 593600. Its totient is φ = 296796.

The previous prime is 445187. The next prime is 445199. The reversal of 445197 is 791544.

It is a happy number.

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 445197 - 2⁷ = 445069 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 445197.

It is not an unprimeable number, because it can be changed into a prime (445199) 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, 74197 + ... + 74202.

It is an arithmetic number, because the mean of its divisors is an integer number (148400).

2⁴⁴⁵¹⁹⁷ is an apocalyptic number.

It is an amenable number.

445197 is a deficient number, since it is larger than the sum of its proper divisors (148403).

445197 is a wasteful number, since it uses less digits than its factorization.

445197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148402.

The product of its digits is 5040, while the sum is 30.

The square root of 445197 is about 667.2308446108. The cubic root of 445197 is about 76.3573316017.

The spelling of 445197 in words is "four hundred forty-five thousand, one hundred ninety-seven".