109914509 has 2 divisors, whose sum is σ = 109914510. Its totient is φ = 109914508.

The previous prime is 109914491. The next prime is 109914523. The reversal of 109914509 is 905419901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109788484 + 126025 = 10478^2 + 355^2 .

It is a cyclic number.

It is not a de Polignac number, because 109914509 - 2¹² = 109910413 is a prime.

It is a super-2 number, since 2×109914509² = 24162398577422162, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109914569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54957254 + 54957255.

It is an arithmetic number, because the mean of its divisors is an integer number (54957255).

Almost surely, 2^109914509 is an apocalyptic number.

It is an amenable number.

109914509 is a deficient number, since it is larger than the sum of its proper divisors (1).

109914509 is an equidigital number, since it uses as much as digits as its factorization.

109914509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 38.

The square root of 109914509 is about 10484.0120659984. The cubic root of 109914509 is about 479.0178252701.

The spelling of 109914509 in words is "one hundred nine million, nine hundred fourteen thousand, five hundred nine".