109688231 has 2 divisors, whose sum is σ = 109688232. Its totient is φ = 109688230.

The previous prime is 109688213. The next prime is 109688263. The reversal of 109688231 is 132886901.

Together with previous prime (109688213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109688231 - 2⁶ = 109688167 is a prime.

It is a super-2 number, since 2×109688231² = 24063016039818722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109687231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54844115 + 54844116.

It is an arithmetic number, because the mean of its divisors is an integer number (54844116).

Almost surely, 2^109688231 is an apocalyptic number.

109688231 is a deficient number, since it is larger than the sum of its proper divisors (1).

109688231 is an equidigital number, since it uses as much as digits as its factorization.

109688231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 109688231 is about 10473.2149314334. The cubic root of 109688231 is about 478.6888857992.

The spelling of 109688231 in words is "one hundred nine million, six hundred eighty-eight thousand, two hundred thirty-one".