109897231 has 8 divisors (see below), whose sum is σ = 116471520. Its totient is φ = 103335168.

The previous prime is 109897213. The next prime is 109897237. The reversal of 109897231 is 132798901.

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 109897231 - 2⁷ = 109897103 is a prime.

It is a super-2 number, since 2×109897231² = 24154802762934722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109897237) 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, 20875 + ... + 25603.

It is an arithmetic number, because the mean of its divisors is an integer number (14558940).

Almost surely, 2^109897231 is an apocalyptic number.

109897231 is a deficient number, since it is larger than the sum of its proper divisors (6574289).

109897231 is a wasteful number, since it uses less digits than its factorization.

109897231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6113.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 109897231 is about 10483.1880170109. The cubic root of 109897231 is about 478.9927242355.

The spelling of 109897231 in words is "one hundred nine million, eight hundred ninety-seven thousand, two hundred thirty-one".