116821127 has 4 divisors (see below), whose sum is σ = 123692976. Its totient is φ = 109949280.

The previous prime is 116821109. The next prime is 116821141. The reversal of 116821127 is 721128611.

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

It is a cyclic number.

It is not a de Polignac number, because 116821127 - 2¹⁰ = 116820103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 116821127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116820127) 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, 3435899 + ... + 3435932.

It is an arithmetic number, because the mean of its divisors is an integer number (30923244).

Almost surely, 2^116821127 is an apocalyptic number.

116821127 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

116821127 is a deficient number, since it is larger than the sum of its proper divisors (6871849).

116821127 is an equidigital number, since it uses as much as digits as its factorization.

116821127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6871848.

The product of its digits is 1344, while the sum is 29.

The square root of 116821127 is about 10808.3822563786. The cubic root of 116821127 is about 488.8479487890.

Adding to 116821127 its reverse (721128611), we get a palindrome (837949738).

The spelling of 116821127 in words is "one hundred sixteen million, eight hundred twenty-one thousand, one hundred twenty-seven".