109506813 has 16 divisors (see below), whose sum is σ = 162664320. Its totient is φ = 65064384.

The previous prime is 109506763. The next prime is 109506821. The reversal of 109506813 is 318605901.

It is not a de Polignac number, because 109506813 - 2¹³ = 109498621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109506833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47281 + ... + 49542.

It is an arithmetic number, because the mean of its divisors is an integer number (10166520).

Almost surely, 2^109506813 is an apocalyptic number.

109506813 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

109506813 is a deficient number, since it is larger than the sum of its proper divisors (53157507).

109506813 is a wasteful number, since it uses less digits than its factorization.

109506813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96868.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 109506813 is about 10464.5503008968. The cubic root of 109506813 is about 478.4248322443.

The spelling of 109506813 in words is "one hundred nine million, five hundred six thousand, eight hundred thirteen".