712129 has 8 divisors (see below), whose sum is σ = 796320. Its totient is φ = 631200.

The previous prime is 712121. The next prime is 712133. The reversal of 712129 is 921217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 712129 - 2³ = 712121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (712121) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 339 + ... + 1240.

It is an arithmetic number, because the mean of its divisors is an integer number (99540).

2⁷¹²¹²⁹ is an apocalyptic number.

It is an amenable number.

712129 is a deficient number, since it is larger than the sum of its proper divisors (84191).

712129 is a wasteful number, since it uses less digits than its factorization.

712129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631.

The product of its digits is 252, while the sum is 22.

The square root of 712129 is about 843.8773607581. The cubic root of 712129 is about 89.3002943961.

It can be divided in two parts, 712 and 129, that added together give a square (841 = 29²).

The spelling of 712129 in words is "seven hundred twelve thousand, one hundred twenty-nine".