3188161 has 2 divisors, whose sum is σ = 3188162. Its totient is φ = 3188160.

The previous prime is 3188131. The next prime is 3188177. The reversal of 3188161 is 1618813.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3186225 + 1936 = 1785^2 + 44^2 .

It is a cyclic number.

It is not a de Polignac number, because 3188161 - 2⁷ = 3188033 is a prime.

3188161 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3188131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1594080 + 1594081.

It is an arithmetic number, because the mean of its divisors is an integer number (1594081).

Almost surely, 2^3188161 is an apocalyptic number.

It is an amenable number.

3188161 is a deficient number, since it is larger than the sum of its proper divisors (1).

3188161 is an equidigital number, since it uses as much as digits as its factorization.

3188161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 28.

The square root of 3188161 is about 1785.5422145668. The cubic root of 3188161 is about 147.1793051650.

The spelling of 3188161 in words is "three million, one hundred eighty-eight thousand, one hundred sixty-one".