731223132 has 24 divisors (see below), whose sum is σ = 1795987200. Its totient is φ = 230912496.

The previous prime is 731223089. The next prime is 731223137. The reversal of 731223132 is 231322137.

731223132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (731223137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1603332 + ... + 1603787.

It is an arithmetic number, because the mean of its divisors is an integer number (74832800).

Almost surely, 2^731223132 is an apocalyptic number.

It is an amenable number.

731223132 is an abundant number, since it is smaller than the sum of its proper divisors (1064764068).

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

731223132 is a wasteful number, since it uses less digits than its factorization.

731223132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207145 (or 3207143 counting only the distinct ones).

The product of its digits is 1512, while the sum is 24.

The square root of 731223132 is about 27041.1377719208. The cubic root of 731223132 is about 900.9139407243.

Adding to 731223132 its reverse (231322137), we get a palindrome (962545269).

The spelling of 731223132 in words is "seven hundred thirty-one million, two hundred twenty-three thousand, one hundred thirty-two".