712135 has 4 divisors (see below), whose sum is σ = 854568. Its totient is φ = 569704.

The previous prime is 712133. The next prime is 712157. The reversal of 712135 is 531217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 531217 = 163 ⋅3259.

It is a cyclic number.

It is not a de Polignac number, because 712135 - 2¹ = 712133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71209 + ... + 71218.

It is an arithmetic number, because the mean of its divisors is an integer number (213642).

2⁷¹²¹³⁵ is an apocalyptic number.

712135 is a deficient number, since it is larger than the sum of its proper divisors (142433).

712135 is a wasteful number, since it uses less digits than its factorization.

712135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142432.

The product of its digits is 210, while the sum is 19.

The square root of 712135 is about 843.8809157695. The cubic root of 712135 is about 89.3005451935.

The spelling of 712135 in words is "seven hundred twelve thousand, one hundred thirty-five".