305522132 has 12 divisors (see below), whose sum is σ = 535477236. Its totient is φ = 152528640.

The previous prime is 305522131. The next prime is 305522149. The reversal of 305522132 is 231225503.

305522132 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 247244176 + 58277956 = 15724^2 + 7634^2 .

It is a junction number, because it is equal to n+sod(n) for n = 305522098 and 305522107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305522131) 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, 55133 + ... + 60420.

It is an arithmetic number, because the mean of its divisors is an integer number (44623103).

Almost surely, 2^305522132 is an apocalyptic number.

It is an amenable number.

305522132 is a deficient number, since it is larger than the sum of its proper divisors (229955104).

305522132 is a wasteful number, since it uses less digits than its factorization.

305522132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116218 (or 116216 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 305522132 is about 17479.1914000620. The cubic root of 305522132 is about 673.5154438851.

Adding to 305522132 its reverse (231225503), we get a palindrome (536747635).

The spelling of 305522132 in words is "three hundred five million, five hundred twenty-two thousand, one hundred thirty-two".