109443491 has 2 divisors, whose sum is σ = 109443492. Its totient is φ = 109443490.

The previous prime is 109443443. The next prime is 109443493. The reversal of 109443491 is 194344901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109443491 - 2⁶ = 109443427 is a prime.

It is a super-3 number, since 3×109443491³ (a number of 25 digits) contains 333 as substring.

Together with 109443493, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (109443493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54721745 + 54721746.

It is an arithmetic number, because the mean of its divisors is an integer number (54721746).

Almost surely, 2^109443491 is an apocalyptic number.

109443491 is a deficient number, since it is larger than the sum of its proper divisors (1).

109443491 is an equidigital number, since it uses as much as digits as its factorization.

109443491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 109443491 is about 10461.5243153185. The cubic root of 109443491 is about 478.3325985358.

The spelling of 109443491 in words is "one hundred nine million, four hundred forty-three thousand, four hundred ninety-one".