13975961 has 2 divisors, whose sum is σ = 13975962. Its totient is φ = 13975960.

The previous prime is 13975943. The next prime is 13975981. The reversal of 13975961 is 16957931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13278736 + 697225 = 3644^2 + 835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13975961 is a prime.

It is not a weakly prime, because it can be changed into another prime (13975901) 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, 6987980 + 6987981.

It is an arithmetic number, because the mean of its divisors is an integer number (6987981).

Almost surely, 2^13975961 is an apocalyptic number.

It is an amenable number.

13975961 is a deficient number, since it is larger than the sum of its proper divisors (1).

13975961 is an equidigital number, since it uses as much as digits as its factorization.

13975961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51030, while the sum is 41.

The square root of 13975961 is about 3738.4436601345. The cubic root of 13975961 is about 240.8762011736.

The spelling of 13975961 in words is "thirteen million, nine hundred seventy-five thousand, nine hundred sixty-one".