2055161 has 4 divisors (see below), whose sum is σ = 2064000. Its totient is φ = 2046324.

The previous prime is 2055133. The next prime is 2055187. The reversal of 2055161 is 1615502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2055161 - 2¹⁸ = 1793017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2055101) 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, 4061 + ... + 4538.

It is an arithmetic number, because the mean of its divisors is an integer number (516000).

2^2055161 is an apocalyptic number.

It is an amenable number.

2055161 is a deficient number, since it is larger than the sum of its proper divisors (8839).

2055161 is an equidigital number, since it uses as much as digits as its factorization.

2055161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8838.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 2055161 is about 1433.5832727819. The cubic root of 2055161 is about 127.1399247254.

The spelling of 2055161 in words is "two million, fifty-five thousand, one hundred sixty-one".