712442161 has 2 divisors, whose sum is σ = 712442162. Its totient is φ = 712442160.

The previous prime is 712442111. The next prime is 712442167. The reversal of 712442161 is 161244217.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 581774400 + 130667761 = 24120^2 + 11431^2 .

It is a cyclic number.

It is not a de Polignac number, because 712442161 - 2⁹ = 712441649 is a prime.

It is a super-3 number, since 3×712442161³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (712442167) 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 as a sum of consecutive naturals, namely, 356221080 + 356221081.

It is an arithmetic number, because the mean of its divisors is an integer number (356221081).

Almost surely, 2^712442161 is an apocalyptic number.

It is an amenable number.

712442161 is a deficient number, since it is larger than the sum of its proper divisors (1).

712442161 is an equidigital number, since it uses as much as digits as its factorization.

712442161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 28.

The square root of 712442161 is about 26691.6121843548. The cubic root of 712442161 is about 893.1338250760.

Adding to 712442161 its reverse (161244217), we get a palindrome (873686378).

It can be divided in two parts, 71244216 and 1, that added together give a palindrome (71244217).

The spelling of 712442161 in words is "seven hundred twelve million, four hundred forty-two thousand, one hundred sixty-one".