109891339 has 2 divisors, whose sum is σ = 109891340. Its totient is φ = 109891338.

The previous prime is 109891321. The next prime is 109891343. The reversal of 109891339 is 933198901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109891339 - 2¹¹ = 109889291 is a prime.

It is a super-2 number, since 2×109891339² = 24152212774425842, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 109891295 and 109891304.

It is not a weakly prime, because it can be changed into another prime (109894339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54945669 + 54945670.

It is an arithmetic number, because the mean of its divisors is an integer number (54945670).

Almost surely, 2^109891339 is an apocalyptic number.

109891339 is a deficient number, since it is larger than the sum of its proper divisors (1).

109891339 is an equidigital number, since it uses as much as digits as its factorization.

109891339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 43.

The square root of 109891339 is about 10482.9069918606. The cubic root of 109891339 is about 478.9841638876.

The spelling of 109891339 in words is "one hundred nine million, eight hundred ninety-one thousand, three hundred thirty-nine".