229495509 has 12 divisors (see below), whose sum is σ = 348940800. Its totient is φ = 144944424.

The previous prime is 229495493. The next prime is 229495517. The reversal of 229495509 is 905594922.

229495509 is a `hidden beast` number, since 2 + 2 + 94 + 9 + 550 + 9 = 666.

It is not a de Polignac number, because 229495509 - 2⁴ = 229495493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229495559) 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 11 ways as a sum of consecutive naturals, for example, 670869 + ... + 671210.

It is an arithmetic number, because the mean of its divisors is an integer number (29078400).

Almost surely, 2^229495509 is an apocalyptic number.

It is an amenable number.

229495509 is a deficient number, since it is larger than the sum of its proper divisors (119445291).

229495509 is a wasteful number, since it uses less digits than its factorization.

229495509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342104 (or 1342101 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 229495509 is about 15149.1091817308. The cubic root of 229495509 is about 612.2442716421.

The spelling of 229495509 in words is "two hundred twenty-nine million, four hundred ninety-five thousand, five hundred nine".