75072307 has 2 divisors, whose sum is σ = 75072308. Its totient is φ = 75072306.

The previous prime is 75072269. The next prime is 75072311. The reversal of 75072307 is 70327057.

It is a strong prime.

It is an emirp because it is prime and its reverse (70327057) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75072307 - 2¹⁵ = 75039539 is a prime.

It is not a weakly prime, because it can be changed into another prime (75072317) 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, 37536153 + 37536154.

It is an arithmetic number, because the mean of its divisors is an integer number (37536154).

Almost surely, 2^75072307 is an apocalyptic number.

75072307 is a deficient number, since it is larger than the sum of its proper divisors (1).

75072307 is an equidigital number, since it uses as much as digits as its factorization.

75072307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10290, while the sum is 31.

The square root of 75072307 is about 8664.4276787333. The cubic root of 75072307 is about 421.8518137563.

The spelling of 75072307 in words is "seventy-five million, seventy-two thousand, three hundred seven".