3531042661 has 2 divisors, whose sum is σ = 3531042662. Its totient is φ = 3531042660.

The previous prime is 3531042637. The next prime is 3531042673. The reversal of 3531042661 is 1662401353.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3047702436 + 483340225 = 55206^2 + 21985^2 .

It is a cyclic number.

It is not a de Polignac number, because 3531042661 - 2⁵ = 3531042629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3531042611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1765521330 + 1765521331.

It is an arithmetic number, because the mean of its divisors is an integer number (1765521331).

Almost surely, 2^3531042661 is an apocalyptic number.

It is an amenable number.

3531042661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3531042661 is an equidigital number, since it uses as much as digits as its factorization.

3531042661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 3531042661 is about 59422.5770309568. The cubic root of 3531042661 is about 1522.7700326777.

The spelling of 3531042661 in words is "three billion, five hundred thirty-one million, forty-two thousand, six hundred sixty-one".