109288243 has 2 divisors, whose sum is σ = 109288244. Its totient is φ = 109288242.

The previous prime is 109288181. The next prime is 109288261. The reversal of 109288243 is 342882901.

It is a strong prime.

It is an emirp because it is prime and its reverse (342882901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109288243 - 2²⁵ = 75733811 is a prime.

It is not a weakly prime, because it can be changed into another prime (109288943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54644121 + 54644122.

It is an arithmetic number, because the mean of its divisors is an integer number (54644122).

Almost surely, 2^109288243 is an apocalyptic number.

109288243 is a deficient number, since it is larger than the sum of its proper divisors (1).

109288243 is an equidigital number, since it uses as much as digits as its factorization.

109288243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 109288243 is about 10454.1017308997. The cubic root of 109288243 is about 478.1063164015.

The spelling of 109288243 in words is "one hundred nine million, two hundred eighty-eight thousand, two hundred forty-three".