75380243 has 2 divisors, whose sum is σ = 75380244. Its totient is φ = 75380242.

The previous prime is 75380237. The next prime is 75380267. The reversal of 75380243 is 34208357.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75380243 is a prime.

It is not a weakly prime, because it can be changed into another prime (75380443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37690121 + 37690122.

It is an arithmetic number, because the mean of its divisors is an integer number (37690122).

Almost surely, 2^75380243 is an apocalyptic number.

75380243 is a deficient number, since it is larger than the sum of its proper divisors (1).

75380243 is an equidigital number, since it uses as much as digits as its factorization.

75380243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 75380243 is about 8682.1796226524. The cubic root of 75380243 is about 422.4278190943.

The spelling of 75380243 in words is "seventy-five million, three hundred eighty thousand, two hundred forty-three".