1345845 has 32 divisors (see below), whose sum is σ = 2322432. Its totient is φ = 663872.

The previous prime is 1345811. The next prime is 1345859. The reversal of 1345845 is 5485431.

It is not a de Polignac number, because 1345845 - 2⁶ = 1345781 is a prime.

It is a super-2 number, since 2×1345845² = 3622597528050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16174 + ... + 16256.

It is an arithmetic number, because the mean of its divisors is an integer number (72576).

2^1345845 is an apocalyptic number.

1345845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1345845 is a deficient number, since it is larger than the sum of its proper divisors (976587).

1345845 is a wasteful number, since it uses less digits than its factorization.

1345845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161.

The product of its digits is 9600, while the sum is 30.

The square root of 1345845 is about 1160.1055986418. The cubic root of 1345845 is about 110.4074421312.

The spelling of 1345845 in words is "one million, three hundred forty-five thousand, eight hundred forty-five".