115745109 has 16 divisors (see below), whose sum is σ = 156254784. Its totient is φ = 76204800.

The previous prime is 115745099. The next prime is 115745141. The reversal of 115745109 is 901547511.

It is not a de Polignac number, because 115745109 - 2¹² = 115741013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115745109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115745309) 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 in 15 ways as a sum of consecutive naturals, for example, 142314 + ... + 143124.

It is an arithmetic number, because the mean of its divisors is an integer number (9765924).

Almost surely, 2^115745109 is an apocalyptic number.

It is an amenable number.

115745109 is a deficient number, since it is larger than the sum of its proper divisors (40509675).

115745109 is a wasteful number, since it uses less digits than its factorization.

115745109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348.

The product of its (nonzero) digits is 6300, while the sum is 33.

The square root of 115745109 is about 10758.4900892272. The cubic root of 115745109 is about 487.3424206014.

The spelling of 115745109 in words is "one hundred fifteen million, seven hundred forty-five thousand, one hundred nine".