13086961 has 2 divisors, whose sum is σ = 13086962. Its totient is φ = 13086960.

The previous prime is 13086959. The next prime is 13086971. The reversal of 13086961 is 16968031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9734400 + 3352561 = 3120^2 + 1831^2 .

It is a cyclic number.

It is not a de Polignac number, because 13086961 - 2¹ = 13086959 is a prime.

Together with 13086959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13086901) 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, 6543480 + 6543481.

It is an arithmetic number, because the mean of its divisors is an integer number (6543481).

Almost surely, 2^13086961 is an apocalyptic number.

It is an amenable number.

13086961 is a deficient number, since it is larger than the sum of its proper divisors (1).

13086961 is an equidigital number, since it uses as much as digits as its factorization.

13086961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 13086961 is about 3617.5904964493. The cubic root of 13086961 is about 235.6565974179.

The spelling of 13086961 in words is "thirteen million, eighty-six thousand, nine hundred sixty-one".