712145641 has 2 divisors, whose sum is σ = 712145642. Its totient is φ = 712145640.

The previous prime is 712145639. The next prime is 712145689. The reversal of 712145641 is 146541217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 710755600 + 1390041 = 26660^2 + 1179^2 .

It is an emirp because it is prime and its reverse (146541217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 712145641 - 2¹ = 712145639 is a prime.

Together with 712145639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (712145611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356072820 + 356072821.

It is an arithmetic number, because the mean of its divisors is an integer number (356072821).

Almost surely, 2^712145641 is an apocalyptic number.

It is an amenable number.

712145641 is a deficient number, since it is larger than the sum of its proper divisors (1).

712145641 is an equidigital number, since it uses as much as digits as its factorization.

712145641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 31.

The square root of 712145641 is about 26686.0570523260. The cubic root of 712145641 is about 893.0098997919.

Adding to 712145641 its reverse (146541217), we get a palindrome (858686858).

The spelling of 712145641 in words is "seven hundred twelve million, one hundred forty-five thousand, six hundred forty-one".