109839013 has 2 divisors, whose sum is σ = 109839014. Its totient is φ = 109839012.

The previous prime is 109839001. The next prime is 109839043. The reversal of 109839013 is 310938901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100340289 + 9498724 = 10017^2 + 3082^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109839013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109839013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109839043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54919506 + 54919507.

It is an arithmetic number, because the mean of its divisors is an integer number (54919507).

Almost surely, 2^109839013 is an apocalyptic number.

It is an amenable number.

109839013 is a deficient number, since it is larger than the sum of its proper divisors (1).

109839013 is an equidigital number, since it uses as much as digits as its factorization.

109839013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 109839013 is about 10480.4109175165. The cubic root of 109839013 is about 478.9081272479.

The spelling of 109839013 in words is "one hundred nine million, eight hundred thirty-nine thousand, thirteen".