1349805 has 24 divisors (see below), whose sum is σ = 2257632. Its totient is φ = 688576.

The previous prime is 1349773. The next prime is 1349807. The reversal of 1349805 is 5089431.

It is not a de Polignac number, because 1349805 - 2⁵ = 1349773 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1349807) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12562 + ... + 12668.

It is an arithmetic number, because the mean of its divisors is an integer number (94068).

2^1349805 is an apocalyptic number.

1349805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1349805 is a deficient number, since it is larger than the sum of its proper divisors (907827).

1349805 is a wasteful number, since it uses less digits than its factorization.

1349805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1349805 is about 1161.8110861926. The cubic root of 1349805 is about 110.5156233241.

The spelling of 1349805 in words is "one million, three hundred forty-nine thousand, eight hundred five".