2318121 has 12 divisors (see below), whose sum is σ = 3606148. Its totient is φ = 1426464.

The previous prime is 2318119. The next prime is 2318153. The reversal of 2318121 is 1218132.

2318121 = 286² + 287² + ... + 311².

It can be written as a sum of positive squares in 2 ways, for example, as 112896 + 2205225 = 336^2 + 1485^2 .

It is not a de Polignac number, because 2318121 - 2¹ = 2318119 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2318094 and 2318103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2318111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9790 + ... + 10023.

2^2318121 is an apocalyptic number.

It is an amenable number.

2318121 is a deficient number, since it is larger than the sum of its proper divisors (1288027).

2318121 is a wasteful number, since it uses less digits than its factorization.

2318121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19832 (or 19829 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 2318121 is about 1522.5376842627. The cubic root of 2318121 is about 132.3463699395.

The spelling of 2318121 in words is "two million, three hundred eighteen thousand, one hundred twenty-one".