1212641 has 2 divisors, whose sum is σ = 1212642. Its totient is φ = 1212640.

The previous prime is 1212613. The next prime is 1212649. The reversal of 1212641 is 1462121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1164241 + 48400 = 1079^2 + 220^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212641 - 2¹⁸ = 950497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1212649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606320 + 606321.

It is an arithmetic number, because the mean of its divisors is an integer number (606321).

2^1212641 is an apocalyptic number.

It is an amenable number.

1212641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212641 is an equidigital number, since it uses as much as digits as its factorization.

1212641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96, while the sum is 17.

The square root of 1212641 is about 1101.1998002179. The cubic root of 1212641 is about 106.6376950397.

Adding to 1212641 its reverse (1462121), we get a palindrome (2674762).

It can be divided in two parts, 12126 and 41, that added together give a cube (12167 = 23³).

The spelling of 1212641 in words is "one million, two hundred twelve thousand, six hundred forty-one".