109613873 has 4 divisors (see below), whose sum is σ = 109639488. Its totient is φ = 109588260.

The previous prime is 109613813. The next prime is 109613887. The reversal of 109613873 is 378316901.

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, and also an emirpimes, since its reverse is a distinct semiprime: 378316901 = 31 ⋅12203771.

It is a cyclic number.

It is not a de Polignac number, because 109613873 - 2¹⁰ = 109612849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109613813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4661 + ... + 15522.

It is an arithmetic number, because the mean of its divisors is an integer number (27409872).

Almost surely, 2^109613873 is an apocalyptic number.

It is an amenable number.

109613873 is a deficient number, since it is larger than the sum of its proper divisors (25615).

109613873 is an equidigital number, since it uses as much as digits as its factorization.

109613873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25614.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 109613873 is about 10469.6644167805. The cubic root of 109613873 is about 478.5806931090.

The spelling of 109613873 in words is "one hundred nine million, six hundred thirteen thousand, eight hundred seventy-three".