3520645129 has 2 divisors, whose sum is σ = 3520645130. Its totient is φ = 3520645128.

The previous prime is 3520645123. The next prime is 3520645133. The reversal of 3520645129 is 9215460253.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2727659529 + 792985600 = 52227^2 + 28160^2 .

It is a cyclic number.

It is not a de Polignac number, because 3520645129 - 2¹¹ = 3520643081 is a prime.

It is not a weakly prime, because it can be changed into another prime (3520645123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1760322564 + 1760322565.

It is an arithmetic number, because the mean of its divisors is an integer number (1760322565).

Almost surely, 2^3520645129 is an apocalyptic number.

It is an amenable number.

3520645129 is a deficient number, since it is larger than the sum of its proper divisors (1).

3520645129 is an equidigital number, since it uses as much as digits as its factorization.

3520645129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 3520645129 is about 59335.0244712177. The cubic root of 3520645129 is about 1521.2739102535.

The spelling of 3520645129 in words is "three billion, five hundred twenty million, six hundred forty-five thousand, one hundred twenty-nine".