109529709 has 16 divisors (see below), whose sum is σ = 148859520. Its totient is φ = 71616960.

The previous prime is 109529689. The next prime is 109529743. The reversal of 109529709 is 907925901.

It is not a de Polignac number, because 109529709 - 2⁵ = 109529677 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109529779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88507 + ... + 89735.

It is an arithmetic number, because the mean of its divisors is an integer number (9303720).

Almost surely, 2^109529709 is an apocalyptic number.

It is an amenable number.

109529709 is a deficient number, since it is larger than the sum of its proper divisors (39329811).

109529709 is a wasteful number, since it uses less digits than its factorization.

109529709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780.

The product of its (nonzero) digits is 51030, while the sum is 42.

The square root of 109529709 is about 10465.6442228847. The cubic root of 109529709 is about 478.4581734015.

The spelling of 109529709 in words is "one hundred nine million, five hundred twenty-nine thousand, seven hundred nine".