1345073 has 4 divisors (see below), whose sum is σ = 1348080. Its totient is φ = 1342068.

The previous prime is 1345051. The next prime is 1345079. The reversal of 1345073 is 3705431.

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 a cyclic number.

It is not a de Polignac number, because 1345073 - 2⁶ = 1345009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1345079) 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, 683 + ... + 1776.

It is an arithmetic number, because the mean of its divisors is an integer number (337020).

2^1345073 is an apocalyptic number.

It is an amenable number.

1345073 is a deficient number, since it is larger than the sum of its proper divisors (3007).

1345073 is an equidigital number, since it uses as much as digits as its factorization.

1345073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3006.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 1345073 is about 1159.7728225821. The cubic root of 1345073 is about 110.3863275531.

The spelling of 1345073 in words is "one million, three hundred forty-five thousand, seventy-three".