230113509 has 4 divisors (see below), whose sum is σ = 306818016. Its totient is φ = 153409004.

The previous prime is 230113493. The next prime is 230113519. The reversal of 230113509 is 905311032.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 230113509 - 2⁴ = 230113493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230113519) 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, 38352249 + ... + 38352254.

It is an arithmetic number, because the mean of its divisors is an integer number (76704504).

Almost surely, 2^230113509 is an apocalyptic number.

It is an amenable number.

230113509 is a deficient number, since it is larger than the sum of its proper divisors (76704507).

230113509 is an equidigital number, since it uses as much as digits as its factorization.

230113509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76704506.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 230113509 is about 15169.4927074046. The cubic root of 230113509 is about 612.7933424258.

The spelling of 230113509 in words is "two hundred thirty million, one hundred thirteen thousand, five hundred nine".