206265013 has 2 divisors, whose sum is σ = 206265014. Its totient is φ = 206265012.

The previous prime is 206264957. The next prime is 206265049. The reversal of 206265013 is 310562602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153586449 + 52678564 = 12393^2 + 7258^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206265013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206265053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103132506 + 103132507.

It is an arithmetic number, because the mean of its divisors is an integer number (103132507).

Almost surely, 2^206265013 is an apocalyptic number.

It is an amenable number.

206265013 is a deficient number, since it is larger than the sum of its proper divisors (1).

206265013 is an equidigital number, since it uses as much as digits as its factorization.

206265013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 206265013 is about 14361.9292924036. The cubic root of 206265013 is about 590.8472105206.

The spelling of 206265013 in words is "two hundred six million, two hundred sixty-five thousand, thirteen".