3521561189 has 2 divisors, whose sum is σ = 3521561190. Its totient is φ = 3521561188.

The previous prime is 3521561179. The next prime is 3521561221. The reversal of 3521561189 is 9811651253.

3521561189 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., 3505824100 + 15737089 = 59210^2 + 3967^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3521561189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3521561149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1760780594 + 1760780595.

It is an arithmetic number, because the mean of its divisors is an integer number (1760780595).

Almost surely, 2^3521561189 is an apocalyptic number.

It is an amenable number.

3521561189 is a deficient number, since it is larger than the sum of its proper divisors (1).

3521561189 is an equidigital number, since it uses as much as digits as its factorization.

3521561189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 41.

The square root of 3521561189 is about 59342.7433558645. The cubic root of 3521561189 is about 1521.4058422599.

The spelling of 3521561189 in words is "three billion, five hundred twenty-one million, five hundred sixty-one thousand, one hundred eighty-nine".