1066245013 has 2 divisors, whose sum is σ = 1066245014. Its totient is φ = 1066245012.

The previous prime is 1066244957. The next prime is 1066245023. The reversal of 1066245013 is 3105426601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 712729809 + 353515204 = 26697^2 + 18802^2 .

It is a cyclic number.

It is not a de Polignac number, because 1066245013 - 2¹⁷ = 1066113941 is a prime.

It is a super-2 number, since 2×1066245013² = 2273756855494740338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1066245023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533122506 + 533122507.

It is an arithmetic number, because the mean of its divisors is an integer number (533122507).

Almost surely, 2^1066245013 is an apocalyptic number.

It is an amenable number.

1066245013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066245013 is an equidigital number, since it uses as much as digits as its factorization.

1066245013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1066245013 is about 32653.4073719727. The cubic root of 1066245013 is about 1021.6112599550.

The spelling of 1066245013 in words is "one billion, sixty-six million, two hundred forty-five thousand, thirteen".