75299243 has 2 divisors, whose sum is σ = 75299244. Its totient is φ = 75299242.

The previous prime is 75299233. The next prime is 75299351. The reversal of 75299243 is 34299257.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75299243 - 2⁴ = 75299227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75299243.

It is not a weakly prime, because it can be changed into another prime (75299233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37649621 + 37649622.

It is an arithmetic number, because the mean of its divisors is an integer number (37649622).

Almost surely, 2^75299243 is an apocalyptic number.

75299243 is a deficient number, since it is larger than the sum of its proper divisors (1).

75299243 is an equidigital number, since it uses as much as digits as its factorization.

75299243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 41.

The square root of 75299243 is about 8677.5136415911. The cubic root of 75299243 is about 422.2764579632.

The spelling of 75299243 in words is "seventy-five million, two hundred ninety-nine thousand, two hundred forty-three".