13143461 has 2 divisors, whose sum is σ = 13143462. Its totient is φ = 13143460.

The previous prime is 13143443. The next prime is 13143469. The reversal of 13143461 is 16434131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11628100 + 1515361 = 3410^2 + 1231^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13143461 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13143469) 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, 6571730 + 6571731.

It is an arithmetic number, because the mean of its divisors is an integer number (6571731).

Almost surely, 2^13143461 is an apocalyptic number.

It is an amenable number.

13143461 is a deficient number, since it is larger than the sum of its proper divisors (1).

13143461 is an equidigital number, since it uses as much as digits as its factorization.

13143461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 13143461 is about 3625.3911513104. The cubic root of 13143461 is about 235.9952419322.

Adding to 13143461 its reverse (16434131), we get a palindrome (29577592).

The spelling of 13143461 in words is "thirteen million, one hundred forty-three thousand, four hundred sixty-one".