1325805 has 24 divisors (see below), whose sum is σ = 2301408. Its totient is φ = 651456.

The previous prime is 1325803. The next prime is 1325861. The reversal of 1325805 is 5085231.

It is not a de Polignac number, because 1325805 - 2¹ = 1325803 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 (1325803) 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, 2274 + ... + 2796.

It is an arithmetic number, because the mean of its divisors is an integer number (95892).

2^1325805 is an apocalyptic number.

1325805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1325805 is a deficient number, since it is larger than the sum of its proper divisors (975603).

1325805 is a wasteful number, since it uses less digits than its factorization.

1325805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557 (or 544 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1325805 is about 1151.4360598835. The cubic root of 1325805 is about 109.8567004538.

The spelling of 1325805 in words is "one million, three hundred twenty-five thousand, eight hundred five".