712534123 has 32 divisors (see below), whose sum is σ = 863875584. Its totient is φ = 574947072.

The previous prime is 712534117. The next prime is 712534133. The reversal of 712534123 is 321435217.

712534123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-712534123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 712534091 and 712534100.

It is not an unprimeable number, because it can be changed into a prime (712534133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1525536 + ... + 1526002.

It is an arithmetic number, because the mean of its divisors is an integer number (26996112).

Almost surely, 2^712534123 is an apocalyptic number.

712534123 is a deficient number, since it is larger than the sum of its proper divisors (151341461).

712534123 is a wasteful number, since it uses less digits than its factorization.

712534123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691.

The product of its digits is 5040, while the sum is 28.

The square root of 712534123 is about 26693.3348047785. The cubic root of 712534123 is about 893.1722519797.

The spelling of 712534123 in words is "seven hundred twelve million, five hundred thirty-four thousand, one hundred twenty-three".