2117513 has 2 divisors, whose sum is σ = 2117514. Its totient is φ = 2117512.

The previous prime is 2117501. The next prime is 2117539. The reversal of 2117513 is 3157112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1926544 + 190969 = 1388^2 + 437^2 .

It is a cyclic number.

It is not a de Polignac number, because 2117513 - 2⁴ = 2117497 is a prime.

It is a super-2 number, since 2×2117513² = 8967722610338, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2117573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058756 + 1058757.

It is an arithmetic number, because the mean of its divisors is an integer number (1058757).

2^2117513 is an apocalyptic number.

It is an amenable number.

2117513 is a deficient number, since it is larger than the sum of its proper divisors (1).

2117513 is an equidigital number, since it uses as much as digits as its factorization.

2117513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 210, while the sum is 20.

The square root of 2117513 is about 1455.1676879315. The cubic root of 2117513 is about 128.4129121696.

The spelling of 2117513 in words is "two million, one hundred seventeen thousand, five hundred thirteen".