2116129 has 2 divisors, whose sum is σ = 2116130. Its totient is φ = 2116128.

The previous prime is 2116123. The next prime is 2116183. The reversal of 2116129 is 9216112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1587600 + 528529 = 1260^2 + 727^2 .

It is a cyclic number.

It is not a de Polignac number, because 2116129 - 2⁵ = 2116097 is a prime.

It is a super-3 number, since 3×2116129³ = 28428089331333644067, which contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2116123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058064 + 1058065.

It is an arithmetic number, because the mean of its divisors is an integer number (1058065).

2^2116129 is an apocalyptic number.

It is an amenable number.

2116129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116129 is an equidigital number, since it uses as much as digits as its factorization.

2116129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 22.

The square root of 2116129 is about 1454.6920636341. The cubic root of 2116129 is about 128.3849293104.

The spelling of 2116129 in words is "two million, one hundred sixteen thousand, one hundred twenty-nine".