113745309 has 8 divisors (see below), whose sum is σ = 151821120. Its totient is φ = 75749856.

The previous prime is 113745263. The next prime is 113745319. The reversal of 113745309 is 903547311.

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

It is not a de Polignac number, because 113745309 - 2¹⁶ = 113679773 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 113745309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113745319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16704 + ... + 22505.

It is an arithmetic number, because the mean of its divisors is an integer number (18977640).

Almost surely, 2^113745309 is an apocalyptic number.

It is an amenable number.

113745309 is a deficient number, since it is larger than the sum of its proper divisors (38075811).

113745309 is an equidigital number, since it uses as much as digits as its factorization.

113745309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40179.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 113745309 is about 10665.1445841114. The cubic root of 113745309 is about 484.5193935329.

The spelling of 113745309 in words is "one hundred thirteen million, seven hundred forty-five thousand, three hundred nine".