1241205 has 16 divisors (see below), whose sum is σ = 2269824. Its totient is φ = 567360.

The previous prime is 1241203. The next prime is 1241243. The reversal of 1241205 is 5021421.

It is not a de Polignac number, because 1241205 - 2¹ = 1241203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5806 + ... + 6015.

It is an arithmetic number, because the mean of its divisors is an integer number (141864).

2^1241205 is an apocalyptic number.

1241205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1241205 is a deficient number, since it is larger than the sum of its proper divisors (1028619).

1241205 is a wasteful number, since it uses less digits than its factorization.

1241205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11836.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1241205 is about 1114.0938021549. The cubic root of 1241205 is about 107.4684962669.

Adding to 1241205 its reverse (5021421), we get a palindrome (6262626).

The spelling of 1241205 in words is "one million, two hundred forty-one thousand, two hundred five".