2118049 has 2 divisors, whose sum is σ = 2118050. Its totient is φ = 2118048.

The previous prime is 2118043. The next prime is 2118059. The reversal of 2118049 is 9408112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2117025 + 1024 = 1455^2 + 32^2 .

It is a cyclic number.

It is not a de Polignac number, because 2118049 - 2¹³ = 2109857 is a prime.

It is a super-2 number, since 2×2118049² = 8972263132802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2118043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1059024 + 1059025.

It is an arithmetic number, because the mean of its divisors is an integer number (1059025).

2^2118049 is an apocalyptic number.

It is an amenable number.

2118049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2118049 is an equidigital number, since it uses as much as digits as its factorization.

2118049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 2118049 is about 1455.3518474926. The cubic root of 2118049 is about 128.4237461864.

The spelling of 2118049 in words is "two million, one hundred eighteen thousand, forty-nine".