109591043 has 2 divisors, whose sum is σ = 109591044. Its totient is φ = 109591042.

The previous prime is 109591039. The next prime is 109591049. The reversal of 109591043 is 340195901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109591043 - 2² = 109591039 is a prime.

It is not a weakly prime, because it can be changed into another prime (109591049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54795521 + 54795522.

It is an arithmetic number, because the mean of its divisors is an integer number (54795522).

Almost surely, 2^109591043 is an apocalyptic number.

109591043 is a deficient number, since it is larger than the sum of its proper divisors (1).

109591043 is an equidigital number, since it uses as much as digits as its factorization.

109591043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 109591043 is about 10468.5740671784. The cubic root of 109591043 is about 478.5474650891.

The spelling of 109591043 in words is "one hundred nine million, five hundred ninety-one thousand, forty-three".