2054161 has 4 divisors (see below), whose sum is σ = 2175012. Its totient is φ = 1933312.

The previous prime is 2054159. The next prime is 2054179. The reversal of 2054161 is 1614502.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1614502 = 2 ⋅807251.

It can be written as a sum of positive squares in 2 ways, for example, as 1500625 + 553536 = 1225^2 + 744^2 .

It is a cyclic number.

It is not a de Polignac number, because 2054161 - 2¹ = 2054159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2054131) 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, 60400 + ... + 60433.

It is an arithmetic number, because the mean of its divisors is an integer number (543753).

2^2054161 is an apocalyptic number.

It is an amenable number.

2054161 is a deficient number, since it is larger than the sum of its proper divisors (120851).

2054161 is a wasteful number, since it uses less digits than its factorization.

2054161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120850.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2054161 is about 1433.2344539537. The cubic root of 2054161 is about 127.1193001366.

Adding to 2054161 its reverse (1614502), we get a palindrome (3668663).

It can be divided in two parts, 20541 and 61, that added together give a palindrome (20602).

The spelling of 2054161 in words is "two million, fifty-four thousand, one hundred sixty-one".