445163 has 4 divisors (see below), whose sum is σ = 447600. Its totient is φ = 442728.

The previous prime is 445157. The next prime is 445169. The reversal of 445163 is 361544.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (445157) and next prime (445169).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445169) 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, 920 + ... + 1317.

It is an arithmetic number, because the mean of its divisors is an integer number (111900).

2⁴⁴⁵¹⁶³ is an apocalyptic number.

445163 is a deficient number, since it is larger than the sum of its proper divisors (2437).

445163 is a wasteful number, since it uses less digits than its factorization.

445163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2436.

The product of its digits is 1440, while the sum is 23.

The square root of 445163 is about 667.2053656859. The cubic root of 445163 is about 76.3553877317.

The spelling of 445163 in words is "four hundred forty-five thousand, one hundred sixty-three".