3167561 has 2 divisors, whose sum is σ = 3167562. Its totient is φ = 3167560.

The previous prime is 3167557. The next prime is 3167569. The reversal of 3167561 is 1657613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3041536 + 126025 = 1744^2 + 355^2 .

It is a cyclic number.

It is not a de Polignac number, because 3167561 - 2² = 3167557 is a prime.

It is a super-3 number, since 3×3167561³ = 95344625269583338443, which contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (3167569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1583780 + 1583781.

It is an arithmetic number, because the mean of its divisors is an integer number (1583781).

Almost surely, 2^3167561 is an apocalyptic number.

It is an amenable number.

3167561 is a deficient number, since it is larger than the sum of its proper divisors (1).

3167561 is an equidigital number, since it uses as much as digits as its factorization.

3167561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 29.

The square root of 3167561 is about 1779.7643102389. The cubic root of 3167561 is about 146.8616249175.

The spelling of 3167561 in words is "three million, one hundred sixty-seven thousand, five hundred sixty-one".