3561545131 has 2 divisors, whose sum is σ = 3561545132. Its totient is φ = 3561545130.

The previous prime is 3561545107. The next prime is 3561545137. The reversal of 3561545131 is 1315451653.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3561545131 - 2⁹ = 3561544619 is a prime.

It is a super-2 number, since 2×3561545131² = 25369207440299614322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3561545137) 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 as a sum of consecutive naturals, namely, 1780772565 + 1780772566.

It is an arithmetic number, because the mean of its divisors is an integer number (1780772566).

Almost surely, 2^3561545131 is an apocalyptic number.

3561545131 is a deficient number, since it is larger than the sum of its proper divisors (1).

3561545131 is an equidigital number, since it uses as much as digits as its factorization.

3561545131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27000, while the sum is 34.

The square root of 3561545131 is about 59678.6823832430. The cubic root of 3561545131 is about 1527.1422199777.

Adding to 3561545131 its reverse (1315451653), we get a palindrome (4876996784).

The spelling of 3561545131 in words is "three billion, five hundred sixty-one million, five hundred forty-five thousand, one hundred thirty-one".