109829813 has 2 divisors, whose sum is σ = 109829814. Its totient is φ = 109829812.

The previous prime is 109829791. The next prime is 109829849. The reversal of 109829813 is 318928901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108951844 + 877969 = 10438^2 + 937^2 .

It is an emirp because it is prime and its reverse (318928901) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109829813 is a prime.

It is a super-2 number, since 2×109829813² = 24125175647229938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109829893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54914906 + 54914907.

It is an arithmetic number, because the mean of its divisors is an integer number (54914907).

Almost surely, 2^109829813 is an apocalyptic number.

It is an amenable number.

109829813 is a deficient number, since it is larger than the sum of its proper divisors (1).

109829813 is an equidigital number, since it uses as much as digits as its factorization.

109829813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 109829813 is about 10479.9719942374. The cubic root of 109829813 is about 478.8947559278.

The spelling of 109829813 in words is "one hundred nine million, eight hundred twenty-nine thousand, eight hundred thirteen".