3160561 has 2 divisors, whose sum is σ = 3160562. Its totient is φ = 3160560.

The previous prime is 3160559. The next prime is 3160583. The reversal of 3160561 is 1650613.

3160561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (3160583) can be obtained adding 3160561 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3041536 + 119025 = 1744^2 + 345^2 .

It is an emirp because it is prime and its reverse (1650613) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3160561 - 2¹ = 3160559 is a prime.

Together with 3160559, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3160541) by changing a digit.

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 as a sum of consecutive naturals, namely, 1580280 + 1580281.

It is an arithmetic number, because the mean of its divisors is an integer number (1580281).

Almost surely, 2^3160561 is an apocalyptic number.

It is an amenable number.

3160561 is a deficient number, since it is larger than the sum of its proper divisors (1).

3160561 is an equidigital number, since it uses as much as digits as its factorization.

3160561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 3160561 is about 1777.7966700385. The cubic root of 3160561 is about 146.7533618524.

It can be divided in two parts, 3160 and 561, that added together give a square (3721 = 61²).

The spelling of 3160561 in words is "three million, one hundred sixty thousand, five hundred sixty-one".