712526981 has 2 divisors, whose sum is σ = 712526982. Its totient is φ = 712526980.

The previous prime is 712526957. The next prime is 712527041. The reversal of 712526981 is 189625217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 456206881 + 256320100 = 21359^2 + 16010^2 .

It is an emirp because it is prime and its reverse (189625217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 712526981 - 2²⁶ = 645418117 is a prime.

It is a super-2 number, since 2×712526981² = 1015389397305948722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (712522981) 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, 356263490 + 356263491.

It is an arithmetic number, because the mean of its divisors is an integer number (356263491).

Almost surely, 2^712526981 is an apocalyptic number.

It is an amenable number.

712526981 is a deficient number, since it is larger than the sum of its proper divisors (1).

712526981 is an equidigital number, since it uses as much as digits as its factorization.

712526981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 41.

The square root of 712526981 is about 26693.2010257294. The cubic root of 712526981 is about 893.1692677683.

The spelling of 712526981 in words is "seven hundred twelve million, five hundred twenty-six thousand, nine hundred eighty-one".