116138919 has 8 divisors (see below), whose sum is σ = 166763632. Its totient is φ = 71470080.

The previous prime is 116138909. The next prime is 116138923. The reversal of 116138919 is 919831611.

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

It is not a de Polignac number, because 116138919 - 2⁴ = 116138903 is a prime.

It is a super-2 number, since 2×116138919² = 26976497012977122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 2977921 = 116138919 / (1 + 1 + 6 + 1 + 3 + 8 + 9 + 1 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116138909) 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, 1488922 + ... + 1488999.

It is an arithmetic number, because the mean of its divisors is an integer number (20845454).

Almost surely, 2^116138919 is an apocalyptic number.

116138919 is a deficient number, since it is larger than the sum of its proper divisors (50624713).

116138919 is a wasteful number, since it uses less digits than its factorization.

116138919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2977937.

The product of its digits is 11664, while the sum is 39.

The square root of 116138919 is about 10776.7768372552. The cubic root of 116138919 is about 487.8945045965.

The spelling of 116138919 in words is "one hundred sixteen million, one hundred thirty-eight thousand, nine hundred nineteen".