72317041 has 2 divisors, whose sum is σ = 72317042. Its totient is φ = 72317040.

The previous prime is 72317033. The next prime is 72317081. The reversal of 72317041 is 14071327.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63936016 + 8381025 = 7996^2 + 2895^2 .

It is an emirp because it is prime and its reverse (14071327) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72317041 - 2³ = 72317033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72316997 and 72317015.

It is not a weakly prime, because it can be changed into another prime (72317081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36158520 + 36158521.

It is an arithmetic number, because the mean of its divisors is an integer number (36158521).

Almost surely, 2^72317041 is an apocalyptic number.

It is an amenable number.

72317041 is a deficient number, since it is larger than the sum of its proper divisors (1).

72317041 is an equidigital number, since it uses as much as digits as its factorization.

72317041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 72317041 is about 8503.9426738425. The cubic root of 72317041 is about 416.6264926244.

Adding to 72317041 its reverse (14071327), we get a palindrome (86388368).

The spelling of 72317041 in words is "seventy-two million, three hundred seventeen thousand, forty-one".