305232136 has 16 divisors (see below), whose sum is σ = 624338640. Its totient is φ = 138741840.

The previous prime is 305232121. The next prime is 305232173. The reversal of 305232136 is 631232503.

It is a happy number.

305232136 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 305232136.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1734186 + ... + 1734361.

It is an arithmetic number, because the mean of its divisors is an integer number (39021165).

Almost surely, 2^305232136 is an apocalyptic number.

It is an amenable number.

305232136 is an abundant number, since it is smaller than the sum of its proper divisors (319106504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

305232136 is a wasteful number, since it uses less digits than its factorization.

305232136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3468564 (or 3468560 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 305232136 is about 17470.8939668238. The cubic root of 305232136 is about 673.3022802614.

Adding to 305232136 its reverse (631232503), we get a palindrome (936464639).

The spelling of 305232136 in words is "three hundred five million, two hundred thirty-two thousand, one hundred thirty-six".