116819751 has 4 divisors (see below), whose sum is σ = 155759672. Its totient is φ = 77879832.

The previous prime is 116819671. The next prime is 116819821. The reversal of 116819751 is 157918611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 157918611 = 3 ⋅52639537.

It is not a de Polignac number, because 116819751 - 2¹⁰ = 116818727 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 (116819051) 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, 19469956 + ... + 19469961.

It is an arithmetic number, because the mean of its divisors is an integer number (38939918).

Almost surely, 2^116819751 is an apocalyptic number.

116819751 is a deficient number, since it is larger than the sum of its proper divisors (38939921).

116819751 is an equidigital number, since it uses as much as digits as its factorization.

116819751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38939920.

The product of its digits is 15120, while the sum is 39.

The square root of 116819751 is about 10808.3186018918. The cubic root of 116819751 is about 488.8460294517.

The spelling of 116819751 in words is "one hundred sixteen million, eight hundred nineteen thousand, seven hundred fifty-one".