712161631 has 2 divisors, whose sum is σ = 712161632. Its totient is φ = 712161630.

The previous prime is 712161601. The next prime is 712161707. The reversal of 712161631 is 136161217.

It is a weak prime.

It is an emirp because it is prime and its reverse (136161217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 712161631 - 2⁹ = 712161119 is a prime.

It is a super-2 number, since 2×712161631² = 1014348377337160322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 712161631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (712161601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356080815 + 356080816.

It is an arithmetic number, because the mean of its divisors is an integer number (356080816).

Almost surely, 2^712161631 is an apocalyptic number.

712161631 is a deficient number, since it is larger than the sum of its proper divisors (1).

712161631 is an equidigital number, since it uses as much as digits as its factorization.

712161631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 28.

The square root of 712161631 is about 26686.3566452972. The cubic root of 712161631 is about 893.0165834067.

The spelling of 712161631 in words is "seven hundred twelve million, one hundred sixty-one thousand, six hundred thirty-one".