109800613 has 4 divisors (see below), whose sum is σ = 118246828. Its totient is φ = 101354400.

The previous prime is 109800611. The next prime is 109800661. The reversal of 109800613 is 316008901.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7851204 + 101949409 = 2802^2 + 10097^2 .

It is a cyclic number.

It is not a de Polignac number, because 109800613 - 2¹ = 109800611 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 (109800611) 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, 4223088 + ... + 4223113.

It is an arithmetic number, because the mean of its divisors is an integer number (29561707).

Almost surely, 2^109800613 is an apocalyptic number.

109800613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

109800613 is a deficient number, since it is larger than the sum of its proper divisors (8446215).

109800613 is an equidigital number, since it uses as much as digits as its factorization.

109800613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8446214.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 109800613 is about 10478.5787681345. The cubic root of 109800613 is about 478.8523115740.

The spelling of 109800613 in words is "one hundred nine million, eight hundred thousand, six hundred thirteen".