1213241 has 2 divisors, whose sum is σ = 1213242. Its totient is φ = 1213240.

The previous prime is 1213213. The next prime is 1213253. The reversal of 1213241 is 1423121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 942841 + 270400 = 971^2 + 520^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213241 - 2¹⁴ = 1196857 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1213271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606620 + 606621.

It is an arithmetic number, because the mean of its divisors is an integer number (606621).

2^1213241 is an apocalyptic number.

It is an amenable number.

1213241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213241 is an equidigital number, since it uses as much as digits as its factorization.

1213241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48, while the sum is 14.

The square root of 1213241 is about 1101.4721966532. The cubic root of 1213241 is about 106.6552798175.

Adding to 1213241 its reverse (1423121), we get a palindrome (2636362).

The spelling of 1213241 in words is "one million, two hundred thirteen thousand, two hundred forty-one".