712541581 has 2 divisors, whose sum is σ = 712541582. Its totient is φ = 712541580.

The previous prime is 712541579. The next prime is 712541617. The reversal of 712541581 is 185145217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 606636900 + 105904681 = 24630^2 + 10291^2 .

It is a cyclic number.

It is not a de Polignac number, because 712541581 - 2¹ = 712541579 is a prime.

It is a super-2 number, since 2×712541581² = 1015431009307959122, which contains 22 as substring.

Together with 712541579, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (712541681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356270790 + 356270791.

It is an arithmetic number, because the mean of its divisors is an integer number (356270791).

Almost surely, 2^712541581 is an apocalyptic number.

It is an amenable number.

712541581 is a deficient number, since it is larger than the sum of its proper divisors (1).

712541581 is an equidigital number, since it uses as much as digits as its factorization.

712541581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11200, while the sum is 34.

The square root of 712541581 is about 26693.4745022075. The cubic root of 712541581 is about 893.1753682073.

Adding to 712541581 its reverse (185145217), we get a palindrome (897686798).

The spelling of 712541581 in words is "seven hundred twelve million, five hundred forty-one thousand, five hundred eighty-one".