3171961 has 9 divisors (see below), whose sum is σ = 3459981. Its totient is φ = 2906592.

The previous prime is 3171947. The next prime is 3171967. The reversal of 3171961 is 1691713.

The square root of 3171961 is 1781.

It is a perfect power (a square), and thus also a powerful number.

3171961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 281961 + 2890000 = 531^2 + 1700^2 .

It is not a de Polignac number, because 3171961 - 2⁹ = 3171449 is a prime.

It is a super-2 number, since 2×3171961² = 20122673171042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3171967) 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 in 8 ways as a sum of consecutive naturals, for example, 23085 + ... + 23221.

Almost surely, 2^3171961 is an apocalyptic number.

3171961 is the 1781-st square number.

3171961 is the 891-st centered octagonal number.

It is an amenable number.

3171961 is a deficient number, since it is larger than the sum of its proper divisors (288020).

3171961 is an equidigital number, since it uses as much as digits as its factorization.

3171961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300 (or 150 counting only the distinct ones).

The product of its digits is 1134, while the sum is 28.

The cubic root of 3171961 is about 146.9295943717.

It can be divided in two parts, 317 and 1961, that added together give a triangular number (2278 = T₆₇).

The spelling of 3171961 in words is "three million, one hundred seventy-one thousand, nine hundred sixty-one".