109959613 has 2 divisors, whose sum is σ = 109959614. Its totient is φ = 109959612.

The previous prime is 109959599. The next prime is 109959653. The reversal of 109959613 is 316959901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97555129 + 12404484 = 9877^2 + 3522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109959613 is a prime.

It is a super-2 number, since 2×109959613² = 24182232982219538, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 109959613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109959653) 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, 54979806 + 54979807.

It is an arithmetic number, because the mean of its divisors is an integer number (54979807).

Almost surely, 2^109959613 is an apocalyptic number.

It is an amenable number.

109959613 is a deficient number, since it is larger than the sum of its proper divisors (1).

109959613 is an equidigital number, since it uses as much as digits as its factorization.

109959613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65610, while the sum is 43.

The square root of 109959613 is about 10486.1629302620. The cubic root of 109959613 is about 479.0833388089.

The spelling of 109959613 in words is "one hundred nine million, nine hundred fifty-nine thousand, six hundred thirteen".