109815793 has 4 divisors (see below), whose sum is σ = 109975408. Its totient is φ = 109656180.

The previous prime is 109815781. The next prime is 109815803. The reversal of 109815793 is 397518901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 109815793 - 2⁹ = 109815281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109815743) 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, 78771 + ... + 80152.

It is an arithmetic number, because the mean of its divisors is an integer number (27493852).

Almost surely, 2^109815793 is an apocalyptic number.

It is an amenable number.

109815793 is a deficient number, since it is larger than the sum of its proper divisors (159615).

109815793 is an equidigital number, since it uses as much as digits as its factorization.

109815793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159614.

The product of its (nonzero) digits is 68040, while the sum is 43.

The square root of 109815793 is about 10479.3030779723. The cubic root of 109815793 is about 478.8743777627.

The spelling of 109815793 in words is "one hundred nine million, eight hundred fifteen thousand, seven hundred ninety-three".