13283561 has 2 divisors, whose sum is σ = 13283562. Its totient is φ = 13283560.

The previous prime is 13283539. The next prime is 13283587. The reversal of 13283561 is 16538231.

13283561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12673600 + 609961 = 3560^2 + 781^2 .

It is a cyclic number.

It is not a de Polignac number, because 13283561 - 2¹⁰ = 13282537 is a prime.

It is not a weakly prime, because it can be changed into another prime (13283521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6641780 + 6641781.

It is an arithmetic number, because the mean of its divisors is an integer number (6641781).

Almost surely, 2^13283561 is an apocalyptic number.

It is an amenable number.

13283561 is a deficient number, since it is larger than the sum of its proper divisors (1).

13283561 is an equidigital number, since it uses as much as digits as its factorization.

13283561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 29.

The square root of 13283561 is about 3644.6619870710. The cubic root of 13283561 is about 236.8307942608.

The spelling of 13283561 in words is "thirteen million, two hundred eighty-three thousand, five hundred sixty-one".