109878013 has 8 divisors (see below), whose sum is σ = 129905280. Its totient is φ = 90933360.

The previous prime is 109877959. The next prime is 109878017. The reversal of 109878013 is 310878901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 109878013 - 2⁹ = 109877501 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 (109878017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270433 + ... + 270838.

It is an arithmetic number, because the mean of its divisors is an integer number (16238160).

Almost surely, 2^109878013 is an apocalyptic number.

It is an amenable number.

109878013 is a deficient number, since it is larger than the sum of its proper divisors (20027267).

109878013 is an equidigital number, since it uses as much as digits as its factorization.

109878013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541307.

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

The square root of 109878013 is about 10482.2713664549. The cubic root of 109878013 is about 478.9648017278.

The spelling of 109878013 in words is "one hundred nine million, eight hundred seventy-eight thousand, thirteen".