113699509 has 16 divisors (see below), whose sum is σ = 142640640. Its totient is φ = 88043760.

The previous prime is 113699507. The next prime is 113699513. The reversal of 113699509 is 905996311.

It is not a de Polignac number, because 113699509 - 2¹ = 113699507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113699507) 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, 8022 + ... + 17080.

It is an arithmetic number, because the mean of its divisors is an integer number (8915040).

Almost surely, 2^113699509 is an apocalyptic number.

It is an amenable number.

113699509 is a deficient number, since it is larger than the sum of its proper divisors (28941131).

113699509 is a wasteful number, since it uses less digits than its factorization.

113699509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9240.

The product of its (nonzero) digits is 65610, while the sum is 43.

The square root of 113699509 is about 10662.9971865325. The cubic root of 113699509 is about 484.4543535839.

The spelling of 113699509 in words is "one hundred thirteen million, six hundred ninety-nine thousand, five hundred nine".