723134212 has 12 divisors (see below), whose sum is σ = 1265703516. Its totient is φ = 361504640.

The previous prime is 723134207. The next prime is 723134233. The reversal of 723134212 is 212431327.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 298114756 + 425019456 = 17266^2 + 20616^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18912 + ... + 42472.

It is an arithmetic number, because the mean of its divisors is an integer number (105475293).

Almost surely, 2^723134212 is an apocalyptic number.

It is an amenable number.

723134212 is a deficient number, since it is larger than the sum of its proper divisors (542569304).

723134212 is a wasteful number, since it uses less digits than its factorization.

723134212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31238 (or 31236 counting only the distinct ones).

The product of its digits is 2016, while the sum is 25.

The square root of 723134212 is about 26891.1549026813. The cubic root of 723134212 is about 897.5795920031.

Adding to 723134212 its reverse (212431327), we get a palindrome (935565539).

The spelling of 723134212 in words is "seven hundred twenty-three million, one hundred thirty-four thousand, two hundred twelve".