109501909 has 4 divisors (see below), whose sum is σ = 119456640. Its totient is φ = 99547180.

The previous prime is 109501901. The next prime is 109501927. The reversal of 109501909 is 909105901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 109501909 - 2³ = 109501901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109501901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4977349 + ... + 4977370.

It is an arithmetic number, because the mean of its divisors is an integer number (29864160).

Almost surely, 2^109501909 is an apocalyptic number.

It is an amenable number.

109501909 is a deficient number, since it is larger than the sum of its proper divisors (9954731).

109501909 is an equidigital number, since it uses as much as digits as its factorization.

109501909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9954730.

The product of its (nonzero) digits is 3645, while the sum is 34.

The square root of 109501909 is about 10464.3159833789. The cubic root of 109501909 is about 478.4176904348.

The spelling of 109501909 in words is "one hundred nine million, five hundred one thousand, nine hundred nine".