116189381 has 8 divisors (see below), whose sum is σ = 144859584. Its totient is φ = 90537120.

The previous prime is 116189371. The next prime is 116189393. The reversal of 116189381 is 183981611.

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 116189381 - 2⁶ = 116189317 is a prime.

It is a super-2 number, since 2×116189381² = 26999944514326322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116189321) 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, 754400 + ... + 754553.

It is an arithmetic number, because the mean of its divisors is an integer number (18107448).

Almost surely, 2^116189381 is an apocalyptic number.

116189381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

116189381 is a deficient number, since it is larger than the sum of its proper divisors (28670203).

116189381 is a wasteful number, since it uses less digits than its factorization.

116189381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508971.

The product of its digits is 10368, while the sum is 38.

The square root of 116189381 is about 10779.1178210464. The cubic root of 116189381 is about 487.9651572476.

The spelling of 116189381 in words is "one hundred sixteen million, one hundred eighty-nine thousand, three hundred eighty-one".