445315 has 24 divisors (see below), whose sum is σ = 632448. Its totient is φ = 299520.

The previous prime is 445307. The next prime is 445321. The reversal of 445315 is 513544.

It is not a de Polignac number, because 445315 - 2³ = 445307 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14350 + ... + 14380.

It is an arithmetic number, because the mean of its divisors is an integer number (26352).

2⁴⁴⁵³¹⁵ is an apocalyptic number.

445315 is a deficient number, since it is larger than the sum of its proper divisors (187133).

445315 is a wasteful number, since it uses less digits than its factorization.

445315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 66 counting only the distinct ones).

The product of its digits is 1200, while the sum is 22.

The square root of 445315 is about 667.3192639210. The cubic root of 445315 is about 76.3640772066.

Adding to 445315 its reverse (513544), we get a palindrome (958859).

It can be divided in two parts, 4453 and 15, that multiplied together give a triangular number (66795 = T₃₆₅).

The spelling of 445315 in words is "four hundred forty-five thousand, three hundred fifteen".