2184157 has 2 divisors, whose sum is σ = 2184158. Its totient is φ = 2184156.

The previous prime is 2184151. The next prime is 2184179. The reversal of 2184157 is 7514812.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1585081 + 599076 = 1259^2 + 774^2 .

It is a cyclic number.

It is not a de Polignac number, because 2184157 - 2¹¹ = 2182109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2184151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1092078 + 1092079.

It is an arithmetic number, because the mean of its divisors is an integer number (1092079).

2^2184157 is an apocalyptic number.

It is an amenable number.

2184157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2184157 is an equidigital number, since it uses as much as digits as its factorization.

2184157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2240, while the sum is 28.

The square root of 2184157 is about 1477.8893733971. The cubic root of 2184157 is about 129.7461911829.

Adding to 2184157 its reverse (7514812), we get a palindrome (9698969).

The spelling of 2184157 in words is "two million, one hundred eighty-four thousand, one hundred fifty-seven".