13200961 has 2 divisors, whose sum is σ = 13200962. Its totient is φ = 13200960.

The previous prime is 13200923. The next prime is 13200977. The reversal of 13200961 is 16900231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11560000 + 1640961 = 3400^2 + 1281^2 .

It is a cyclic number.

It is not a de Polignac number, because 13200961 - 2⁷ = 13200833 is a prime.

It is not a weakly prime, because it can be changed into another prime (13500961) 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, 6600480 + 6600481.

It is an arithmetic number, because the mean of its divisors is an integer number (6600481).

Almost surely, 2^13200961 is an apocalyptic number.

It is an amenable number.

13200961 is a deficient number, since it is larger than the sum of its proper divisors (1).

13200961 is an equidigital number, since it uses as much as digits as its factorization.

13200961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 13200961 is about 3633.3126757823. The cubic root of 13200961 is about 236.3388852108.

It can be divided in two parts, 13200 and 961, that added together give a square (14161 = 119²).

The spelling of 13200961 in words is "thirteen million, two hundred thousand, nine hundred sixty-one".