116187421 has 8 divisors (see below), whose sum is σ = 138559104. Its totient is φ = 95259120.

The previous prime is 116187397. The next prime is 116187439. The reversal of 116187421 is 124781611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 116187421 - 2⁷ = 116187293 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 (116187521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360670 + ... + 360991.

It is an arithmetic number, because the mean of its divisors is an integer number (17319888).

Almost surely, 2^116187421 is an apocalyptic number.

It is an amenable number.

116187421 is a deficient number, since it is larger than the sum of its proper divisors (22371683).

116187421 is an equidigital number, since it uses as much as digits as its factorization.

116187421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721691.

The product of its digits is 2688, while the sum is 31.

The square root of 116187421 is about 10779.0269041319. The cubic root of 116187421 is about 487.9624134022.

The spelling of 116187421 in words is "one hundred sixteen million, one hundred eighty-seven thousand, four hundred twenty-one".