1213414441 has 2 divisors, whose sum is σ = 1213414442. Its totient is φ = 1213414440.

The previous prime is 1213414439. The next prime is 1213414459. The reversal of 1213414441 is 1444143121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 806787216 + 406627225 = 28404^2 + 20165^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213414441 - 2¹ = 1213414439 is a prime.

Together with 1213414439, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1213414141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606707220 + 606707221.

It is an arithmetic number, because the mean of its divisors is an integer number (606707221).

It is a self-describing number.

Almost surely, 2^1213414441 is an apocalyptic number.

It is an amenable number.

1213414441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213414441 is an equidigital number, since it uses as much as digits as its factorization.

1213414441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 25.

The square root of 1213414441 is about 34834.0988257196. The cubic root of 1213414441 is about 1066.6036193964.

Adding to 1213414441 its reverse (1444143121), we get a palindrome (2657557562).

The spelling of 1213414441 in words is "one billion, two hundred thirteen million, four hundred fourteen thousand, four hundred forty-one".