2025181 has 2 divisors, whose sum is σ = 2025182. Its totient is φ = 2025180.

The previous prime is 2025169. The next prime is 2025187. The reversal of 2025181 is 1815202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1092025 + 933156 = 1045^2 + 966^2 .

It is a cyclic number.

It is not a de Polignac number, because 2025181 - 2⁷ = 2025053 is a prime.

It is a super-2 number, since 2×2025181² = 8202716165522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2025187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1012590 + 1012591.

It is an arithmetic number, because the mean of its divisors is an integer number (1012591).

2^2025181 is an apocalyptic number.

It is an amenable number.

2025181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2025181 is an equidigital number, since it uses as much as digits as its factorization.

2025181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 2025181 is about 1423.0885425721. The cubic root of 2025181 is about 126.5186690981.

The spelling of 2025181 in words is "two million, twenty-five thousand, one hundred eighty-one".