3561130305 has 32 divisors (see below), whose sum is σ = 6502012800. Its totient is φ = 1847935296.

The previous prime is 3561130291. The next prime is 3561130327. The reversal of 3561130305 is 5030311653.

3561130305 is a `hidden beast` number, since 356 + 1 + 1 + 3 + 0 + 305 = 666.

It is not a de Polignac number, because 3561130305 - 2⁶ = 3561130241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 351475 + ... + 361464.

It is an arithmetic number, because the mean of its divisors is an integer number (203187900).

Almost surely, 2^3561130305 is an apocalyptic number.

It is an amenable number.

3561130305 is a deficient number, since it is larger than the sum of its proper divisors (2940882495).

3561130305 is a wasteful number, since it uses less digits than its factorization.

3561130305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712990 (or 712984 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

The square root of 3561130305 is about 59675.2067864033. The cubic root of 3561130305 is about 1527.0829270892.

Adding to 3561130305 its reverse (5030311653), we get a palindrome (8591441958).

The spelling of 3561130305 in words is "three billion, five hundred sixty-one million, one hundred thirty thousand, three hundred five".