2116061 has 4 divisors (see below), whose sum is σ = 2147712. Its totient is φ = 2084412.

The previous prime is 2116039. The next prime is 2116063. The reversal of 2116061 is 1606112.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2116061 - 2¹⁴ = 2099677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15725 + ... + 15858.

It is an arithmetic number, because the mean of its divisors is an integer number (536928).

2^2116061 is an apocalyptic number.

It is an amenable number.

2116061 is a deficient number, since it is larger than the sum of its proper divisors (31651).

2116061 is an equidigital number, since it uses as much as digits as its factorization.

2116061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31650.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2116061 is about 1454.6686908021. The cubic root of 2116061 is about 128.3835541156.

The spelling of 2116061 in words is "two million, one hundred sixteen thousand, sixty-one".