72313126541 has 2 divisors, whose sum is σ = 72313126542. Its totient is φ = 72313126540.

The previous prime is 72313126441. The next prime is 72313126573. The reversal of 72313126541 is 14562131327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65218433641 + 7094692900 = 255379^2 + 84230^2 .

It is a cyclic number.

It is not a de Polignac number, because 72313126541 - 2¹⁰ = 72313125517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72313126141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36156563270 + 36156563271.

It is an arithmetic number, because the mean of its divisors is an integer number (36156563271).

Almost surely, 2^72313126541 is an apocalyptic number.

It is an amenable number.

72313126541 is a deficient number, since it is larger than the sum of its proper divisors (1).

72313126541 is an equidigital number, since it uses as much as digits as its factorization.

72313126541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

Adding to 72313126541 its reverse (14562131327), we get a palindrome (86875257868).

The spelling of 72313126541 in words is "seventy-two billion, three hundred thirteen million, one hundred twenty-six thousand, five hundred forty-one".