109869959 has 2 divisors, whose sum is σ = 109869960. Its totient is φ = 109869958.

The previous prime is 109869953. The next prime is 109870003. The reversal of 109869959 is 959968901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109869959 - 2⁴ = 109869943 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109869953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54934979 + 54934980.

It is an arithmetic number, because the mean of its divisors is an integer number (54934980).

Almost surely, 2^109869959 is an apocalyptic number.

109869959 is a deficient number, since it is larger than the sum of its proper divisors (1).

109869959 is an equidigital number, since it uses as much as digits as its factorization.

109869959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1574640, while the sum is 56.

The square root of 109869959 is about 10481.8871869525. The cubic root of 109869959 is about 478.9530988200.

The spelling of 109869959 in words is "one hundred nine million, eight hundred sixty-nine thousand, nine hundred fifty-nine".