3530031661 has 4 divisors (see below), whose sum is σ = 3801572572. Its totient is φ = 3258490752.

The previous prime is 3530031647. The next prime is 3530031667. The reversal of 3530031661 is 1661300353.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1566655561 + 1963376100 = 39581^2 + 44310^2 .

It is a cyclic number.

It is not a de Polignac number, because 3530031661 - 2¹⁵ = 3529998893 is a prime.

It is a super-2 number, since 2×3530031661² = 24922247055324837842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3530031667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135770436 + ... + 135770461.

It is an arithmetic number, because the mean of its divisors is an integer number (950393143).

Almost surely, 2^3530031661 is an apocalyptic number.

It is an amenable number.

3530031661 is a deficient number, since it is larger than the sum of its proper divisors (271540911).

3530031661 is a wasteful number, since it uses less digits than its factorization.

3530031661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271540910.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 3530031661 is about 59414.0695542731. The cubic root of 3530031661 is about 1522.6246868026.

The spelling of 3530031661 in words is "three billion, five hundred thirty million, thirty-one thousand, six hundred sixty-one".