4971181 has 2 divisors, whose sum is σ = 4971182. Its totient is φ = 4971180.

The previous prime is 4971173. The next prime is 4971193. The reversal of 4971181 is 1811794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4536900 + 434281 = 2130^2 + 659^2 .

It is a cyclic number.

It is not a de Polignac number, because 4971181 - 2³ = 4971173 is a prime.

It is a super-2 number, since 2×4971181² = 49425281069522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4971781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2485590 + 2485591.

It is an arithmetic number, because the mean of its divisors is an integer number (2485591).

Almost surely, 2^4971181 is an apocalyptic number.

It is an amenable number.

4971181 is a deficient number, since it is larger than the sum of its proper divisors (1).

4971181 is an equidigital number, since it uses as much as digits as its factorization.

4971181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 31.

The square root of 4971181 is about 2229.6145406774. The cubic root of 4971181 is about 170.6684294625.

The spelling of 4971181 in words is "four million, nine hundred seventy-one thousand, one hundred eighty-one".