1445965 has 4 divisors (see below), whose sum is σ = 1735164. Its totient is φ = 1156768.

The previous prime is 1445963. The next prime is 1445971. The reversal of 1445965 is 5695441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5695441 = 251 ⋅22691.

It can be written as a sum of positive squares in 2 ways, for example, as 784996 + 660969 = 886^2 + 813^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445965 - 2¹ = 1445963 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1445965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445963) 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, 144592 + ... + 144601.

It is an arithmetic number, because the mean of its divisors is an integer number (433791).

2^1445965 is an apocalyptic number.

It is an amenable number.

1445965 is a deficient number, since it is larger than the sum of its proper divisors (289199).

1445965 is an equidigital number, since it uses as much as digits as its factorization.

1445965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289198.

The product of its digits is 21600, while the sum is 34.

The square root of 1445965 is about 1202.4828481105. The cubic root of 1445965 is about 113.0800331034.

The spelling of 1445965 in words is "one million, four hundred forty-five thousand, nine hundred sixty-five".