1445423 has 4 divisors (see below), whose sum is σ = 1651920. Its totient is φ = 1238928.

The previous prime is 1445419. The next prime is 1445429. The reversal of 1445423 is 3245441.

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

It is a cyclic number.

It is not a de Polignac number, because 1445423 - 2² = 1445419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103238 + ... + 103251.

It is an arithmetic number, because the mean of its divisors is an integer number (412980).

2^1445423 is an apocalyptic number.

1445423 is a deficient number, since it is larger than the sum of its proper divisors (206497).

1445423 is an equidigital number, since it uses as much as digits as its factorization.

1445423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206496.

The product of its digits is 1920, while the sum is 23.

The square root of 1445423 is about 1202.2574599477. The cubic root of 1445423 is about 113.0659025084.

The spelling of 1445423 in words is "one million, four hundred forty-five thousand, four hundred twenty-three".