109641091 has 8 divisors (see below), whose sum is σ = 126814464. Its totient is φ = 92845320.

The previous prime is 109641089. The next prime is 109641121. The reversal of 109641091 is 190146901.

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 109641091 - 2¹ = 109641089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109641061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93775 + ... + 94936.

It is an arithmetic number, because the mean of its divisors is an integer number (15851808).

Almost surely, 2^109641091 is an apocalyptic number.

109641091 is a deficient number, since it is larger than the sum of its proper divisors (17173373).

109641091 is an equidigital number, since it uses as much as digits as its factorization.

109641091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188801.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 109641091 is about 10470.9641867404. The cubic root of 109641091 is about 478.6203016334.

Adding to 109641091 its reverse (190146901), we get a palindrome (299787992).

The spelling of 109641091 in words is "one hundred nine million, six hundred forty-one thousand, ninety-one".