712145671 has 16 divisors (see below), whose sum is σ = 742993920. Its totient is φ = 681841440.

The previous prime is 712145641. The next prime is 712145689. The reversal of 712145671 is 176541217.

It is a cyclic number.

It is not a de Polignac number, because 712145671 - 2⁵ = 712145639 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 (712145611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2052120 + ... + 2052466.

It is an arithmetic number, because the mean of its divisors is an integer number (46437120).

Almost surely, 2^712145671 is an apocalyptic number.

712145671 is a deficient number, since it is larger than the sum of its proper divisors (30848249).

712145671 is a wasteful number, since it uses less digits than its factorization.

712145671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894.

The product of its digits is 11760, while the sum is 34.

The square root of 712145671 is about 26686.0576144173. The cubic root of 712145671 is about 893.0099123316.

Adding to 712145671 its reverse (176541217), we get a palindrome (888686888).

The spelling of 712145671 in words is "seven hundred twelve million, one hundred forty-five thousand, six hundred seventy-one".