2518121 has 2 divisors, whose sum is σ = 2518122. Its totient is φ = 2518120.

The previous prime is 2518093. The next prime is 2518129. The reversal of 2518121 is 1218152.

It is a happy number.

2518121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1392400 + 1125721 = 1180^2 + 1061^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2518121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2518093 and 2518102.

It is not a weakly prime, because it can be changed into another prime (2518129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1259060 + 1259061.

It is an arithmetic number, because the mean of its divisors is an integer number (1259061).

2^2518121 is an apocalyptic number.

It is an amenable number.

2518121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2518121 is an equidigital number, since it uses as much as digits as its factorization.

2518121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 160, while the sum is 20.

The square root of 2518121 is about 1586.8588469048. The cubic root of 2518121 is about 136.0480114513.

The spelling of 2518121 in words is "two million, five hundred eighteen thousand, one hundred twenty-one".