1345345 has 4 divisors (see below), whose sum is σ = 1614420. Its totient is φ = 1076272.

The previous prime is 1345343. The next prime is 1345349. The reversal of 1345345 is 5435431.

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

It can be written as a sum of positive squares in 2 ways, for example, as 937024 + 408321 = 968^2 + 639^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345345 - 2¹ = 1345343 is a prime.

1345345 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1345343) 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, 134530 + ... + 134539.

It is an arithmetic number, because the mean of its divisors is an integer number (403605).

2^1345345 is an apocalyptic number.

It is an amenable number.

1345345 is a deficient number, since it is larger than the sum of its proper divisors (269075).

1345345 is an equidigital number, since it uses as much as digits as its factorization.

1345345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269074.

The product of its digits is 3600, while the sum is 25.

The square root of 1345345 is about 1159.8900809991. The cubic root of 1345345 is about 110.3937678079.

The spelling of 1345345 in words is "one million, three hundred forty-five thousand, three hundred forty-five".