109469729 has 4 divisors (see below), whose sum is σ = 110102676. Its totient is φ = 108836784.

The previous prime is 109469707. The next prime is 109469741. The reversal of 109469729 is 927964901.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58675600 + 50794129 = 7660^2 + 7127^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109469729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (109469329) 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, 316214 + ... + 316559.

It is an arithmetic number, because the mean of its divisors is an integer number (27525669).

Almost surely, 2^109469729 is an apocalyptic number.

It is an amenable number.

109469729 is a deficient number, since it is larger than the sum of its proper divisors (632947).

109469729 is an equidigital number, since it uses as much as digits as its factorization.

109469729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632946.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 109469729 is about 10462.7782639221. The cubic root of 109469729 is about 478.3708206593.

The spelling of 109469729 in words is "one hundred nine million, four hundred sixty-nine thousand, seven hundred twenty-nine".