116761021 has 4 divisors (see below), whose sum is σ = 125742652. Its totient is φ = 107779392.

The previous prime is 116761009. The next prime is 116761027. The reversal of 116761021 is 120167611.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18156121 + 98604900 = 4261^2 + 9930^2 .

It is a cyclic number.

It is not a de Polignac number, because 116761021 - 2⁹ = 116760509 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 (116761027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4490796 + ... + 4490821.

It is an arithmetic number, because the mean of its divisors is an integer number (31435663).

Almost surely, 2^116761021 is an apocalyptic number.

It is an amenable number.

116761021 is a deficient number, since it is larger than the sum of its proper divisors (8981631).

116761021 is an equidigital number, since it uses as much as digits as its factorization.

116761021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8981630.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 116761021 is about 10805.6013715110. The cubic root of 116761021 is about 488.7640948484.

The spelling of 116761021 in words is "one hundred sixteen million, seven hundred sixty-one thousand, twenty-one".