109643269 has 2 divisors, whose sum is σ = 109643270. Its totient is φ = 109643268.

The previous prime is 109643263. The next prime is 109643279. The reversal of 109643269 is 962346901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106708900 + 2934369 = 10330^2 + 1713^2 .

It is a cyclic number.

It is not a de Polignac number, because 109643269 - 2¹¹ = 109641221 is a prime.

It is a super-2 number, since 2×109643269² = 24043292874012722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109643263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54821634 + 54821635.

It is an arithmetic number, because the mean of its divisors is an integer number (54821635).

Almost surely, 2^109643269 is an apocalyptic number.

It is an amenable number.

109643269 is a deficient number, since it is larger than the sum of its proper divisors (1).

109643269 is an equidigital number, since it uses as much as digits as its factorization.

109643269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 109643269 is about 10471.0681881076. The cubic root of 109643269 is about 478.6234708470.

The spelling of 109643269 in words is "one hundred nine million, six hundred forty-three thousand, two hundred sixty-nine".