712267161 has 4 divisors (see below), whose sum is σ = 949689552. Its totient is φ = 474844772.

The previous prime is 712267147. The next prime is 712267163. The reversal of 712267161 is 161762217.

712267161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 712267161 - 2⁶ = 712267097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (712267163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118711191 + ... + 118711196.

It is an arithmetic number, because the mean of its divisors is an integer number (237422388).

Almost surely, 2^712267161 is an apocalyptic number.

It is an amenable number.

712267161 is a deficient number, since it is larger than the sum of its proper divisors (237422391).

712267161 is a wasteful number, since it uses less digits than its factorization.

712267161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237422390.

The product of its digits is 7056, while the sum is 33.

The square root of 712267161 is about 26688.3337996211. Note that the first 3 decimals coincide. The cubic root of 712267161 is about 893.0606910837.

It can be divided in two parts, 71226 and 7161, that added together give a palindrome (78387).

The spelling of 712267161 in words is "seven hundred twelve million, two hundred sixty-seven thousand, one hundred sixty-one".