72045341 has 2 divisors, whose sum is σ = 72045342. Its totient is φ = 72045340.

The previous prime is 72045293. The next prime is 72045377. The reversal of 72045341 is 14354027.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66504025 + 5541316 = 8155^2 + 2354^2 .

It is an emirp because it is prime and its reverse (14354027) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72045341 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72045341.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72045041) 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, 36022670 + 36022671.

It is an arithmetic number, because the mean of its divisors is an integer number (36022671).

Almost surely, 2^72045341 is an apocalyptic number.

It is an amenable number.

72045341 is a deficient number, since it is larger than the sum of its proper divisors (1).

72045341 is an equidigital number, since it uses as much as digits as its factorization.

72045341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 72045341 is about 8487.9526977947. The cubic root of 72045341 is about 416.1040732123.

Adding to 72045341 its reverse (14354027), we get a palindrome (86399368).

The spelling of 72045341 in words is "seventy-two million, forty-five thousand, three hundred forty-one".