1205841 has 24 divisors (see below), whose sum is σ = 2017344. Its totient is φ = 635040.

The previous prime is 1205819. The next prime is 1205843. The reversal of 1205841 is 1485021.

It is not a de Polignac number, because 1205841 - 2⁷ = 1205713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1205843) 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, 1596 + ... + 2226.

It is an arithmetic number, because the mean of its divisors is an integer number (84056).

2^1205841 is an apocalyptic number.

It is an amenable number.

1205841 is a deficient number, since it is larger than the sum of its proper divisors (811503).

1205841 is a wasteful number, since it uses less digits than its factorization.

1205841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1205841 is about 1098.1079181938. The cubic root of 1205841 is about 106.4379942796.

The spelling of 1205841 in words is "one million, two hundred five thousand, eight hundred forty-one".