107816491 has 4 divisors (see below), whose sum is σ = 108197752. Its totient is φ = 107435232.

The previous prime is 107816477. The next prime is 107816497. The reversal of 107816491 is 194618701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 194618701 = 857 ⋅227093.

It is a cyclic number.

It is not a de Polignac number, because 107816491 - 2⁵ = 107816459 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 107816491.

It is not an unprimeable number, because it can be changed into a prime (107816497) 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, 190206 + ... + 190771.

It is an arithmetic number, because the mean of its divisors is an integer number (27049438).

Almost surely, 2^107816491 is an apocalyptic number.

107816491 is a deficient number, since it is larger than the sum of its proper divisors (381261).

107816491 is an equidigital number, since it uses as much as digits as its factorization.

107816491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381260.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 107816491 is about 10383.4720108449. The cubic root of 107816491 is about 475.9504382524.

The spelling of 107816491 in words is "one hundred seven million, eight hundred sixteen thousand, four hundred ninety-one".