13121441 has 2 divisors, whose sum is σ = 13121442. Its totient is φ = 13121440.

The previous prime is 13121429. The next prime is 13121453. The reversal of 13121441 is 14412131.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (13121429) and next prime (13121453).

It can be written as a sum of positive squares in only one way, i.e., 10214416 + 2907025 = 3196^2 + 1705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13121441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13121411) 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 as a sum of consecutive naturals, namely, 6560720 + 6560721.

It is an arithmetic number, because the mean of its divisors is an integer number (6560721).

Almost surely, 2^13121441 is an apocalyptic number.

It is an amenable number.

13121441 is a deficient number, since it is larger than the sum of its proper divisors (1).

13121441 is an equidigital number, since it uses as much as digits as its factorization.

13121441 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 13121441 is about 3622.3529645798. The cubic root of 13121441 is about 235.8633761070.

Adding to 13121441 its reverse (14412131), we get a palindrome (27533572).

The spelling of 13121441 in words is "thirteen million, one hundred twenty-one thousand, four hundred forty-one".