3601435561 has 8 divisors (see below), whose sum is σ = 3610784520. Its totient is φ = 3592098048.

The previous prime is 3601435529. The next prime is 3601435573. The reversal of 3601435561 is 1655341063.

It can be written as a sum of positive squares in 4 ways, for example, as 160909225 + 3440526336 = 12685^2 + 58656^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3601435561 - 2⁵ = 3601435529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3601435501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1184335 + ... + 1187371.

It is an arithmetic number, because the mean of its divisors is an integer number (451348065).

Almost surely, 2^3601435561 is an apocalyptic number.

It is an amenable number.

3601435561 is a deficient number, since it is larger than the sum of its proper divisors (9348959).

3601435561 is a wasteful number, since it uses less digits than its factorization.

3601435561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5723.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 3601435561 is about 60011.9618159580. The cubic root of 3601435561 is about 1532.8225569615.

The spelling of 3601435561 in words is "three billion, six hundred one million, four hundred thirty-five thousand, five hundred sixty-one".