116891519 has 4 divisors (see below), whose sum is σ = 116915880. Its totient is φ = 116867160.

The previous prime is 116891503. The next prime is 116891557. The reversal of 116891519 is 915198611.

It is a happy number.

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 116891519 - 2⁴ = 116891503 is a prime.

It is a super-2 number, since 2×116891519² = 27327254428254722, 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 (116891569) 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, 2324 + ... + 15465.

It is an arithmetic number, because the mean of its divisors is an integer number (29228970).

Almost surely, 2^116891519 is an apocalyptic number.

116891519 is a deficient number, since it is larger than the sum of its proper divisors (24361).

116891519 is an equidigital number, since it uses as much as digits as its factorization.

116891519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24360.

The product of its digits is 19440, while the sum is 41.

The square root of 116891519 is about 10811.6381274995. The cubic root of 116891519 is about 488.9461161794.

The spelling of 116891519 in words is "one hundred sixteen million, eight hundred ninety-one thousand, five hundred nineteen".