2058181 has 4 divisors (see below), whose sum is σ = 2070252. Its totient is φ = 2046112.

The previous prime is 2058179. The next prime is 2058191. The reversal of 2058181 is 1818502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1985281 + 72900 = 1409^2 + 270^2 .

It is a cyclic number.

It is not a de Polignac number, because 2058181 - 2¹ = 2058179 is a prime.

It is a super-2 number, since 2×2058181² = 8472218057522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2058131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5776 + ... + 6121.

It is an arithmetic number, because the mean of its divisors is an integer number (517563).

2^2058181 is an apocalyptic number.

It is an amenable number.

2058181 is a deficient number, since it is larger than the sum of its proper divisors (12071).

2058181 is a wasteful number, since it uses less digits than its factorization.

2058181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12070.

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 2058181 is about 1434.6361908163. The cubic root of 2058181 is about 127.2021704006.

The spelling of 2058181 in words is "two million, fifty-eight thousand, one hundred eighty-one".