109848509 has 8 divisors (see below), whose sum is σ = 117463608. Its totient is φ = 102361600.

The previous prime is 109848467. The next prime is 109848521. The reversal of 109848509 is 905848901.

It can be written as a sum of positive squares in 4 ways, for example, as 62884900 + 46963609 = 7930^2 + 6853^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109848509 is a prime.

It is a super-4 number, since 4×109848509⁴ (a number of 33 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 109848509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109848559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30272 + ... + 33705.

It is an arithmetic number, because the mean of its divisors is an integer number (14682951).

Almost surely, 2^109848509 is an apocalyptic number.

It is an amenable number.

109848509 is a deficient number, since it is larger than the sum of its proper divisors (7615099).

109848509 is a wasteful number, since it uses less digits than its factorization.

109848509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64095.

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 109848509 is about 10480.8639433970. The cubic root of 109848509 is about 478.9219279926.

The spelling of 109848509 in words is "one hundred nine million, eight hundred forty-eight thousand, five hundred nine".