109001191 has 8 divisors (see below), whose sum is σ = 118994960. Its totient is φ = 99237312.

The previous prime is 109001141. The next prime is 109001201. The reversal of 109001191 is 191100901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109001191 - 2¹³ = 108992999 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109001141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56481 + ... + 58378.

It is an arithmetic number, because the mean of its divisors is an integer number (14874370).

Almost surely, 2^109001191 is an apocalyptic number.

109001191 is a deficient number, since it is larger than the sum of its proper divisors (9993769).

109001191 is a wasteful number, since it uses less digits than its factorization.

109001191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114945.

The product of its (nonzero) digits is 81, while the sum is 22.

The square root of 109001191 is about 10440.3635473100. The cubic root of 109001191 is about 477.6873579246.

The spelling of 109001191 in words is "one hundred nine million, one thousand, one hundred ninety-one".