72384251 has 2 divisors, whose sum is σ = 72384252. Its totient is φ = 72384250.

The previous prime is 72384233. The next prime is 72384293. The reversal of 72384251 is 15248327.

It is a weak prime.

It is an emirp because it is prime and its reverse (15248327) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72384251 - 2¹⁸ = 72122107 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72383251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36192125 + 36192126.

It is an arithmetic number, because the mean of its divisors is an integer number (36192126).

Almost surely, 2^72384251 is an apocalyptic number.

72384251 is a deficient number, since it is larger than the sum of its proper divisors (1).

72384251 is an equidigital number, since it uses as much as digits as its factorization.

72384251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 32.

The square root of 72384251 is about 8507.8934525533. The cubic root of 72384251 is about 416.7555207483.

The spelling of 72384251 in words is "seventy-two million, three hundred eighty-four thousand, two hundred fifty-one".