3520645189 has 2 divisors, whose sum is σ = 3520645190. Its totient is φ = 3520645188.

The previous prime is 3520645133. The next prime is 3520645199. The reversal of 3520645189 is 9815460253.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2888525025 + 632120164 = 53745^2 + 25142^2 .

It is a cyclic number.

It is not a de Polignac number, because 3520645189 - 2¹¹ = 3520643141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3520645129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1760322594 + 1760322595.

It is an arithmetic number, because the mean of its divisors is an integer number (1760322595).

Almost surely, 2^3520645189 is an apocalyptic number.

It is an amenable number.

3520645189 is a deficient number, since it is larger than the sum of its proper divisors (1).

3520645189 is an equidigital number, since it uses as much as digits as its factorization.

3520645189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 3520645189 is about 59335.0249768212. The cubic root of 3520645189 is about 1521.2739188955.

The spelling of 3520645189 in words is "three billion, five hundred twenty million, six hundred forty-five thousand, one hundred eighty-nine".