75384161 has 2 divisors, whose sum is σ = 75384162. Its totient is φ = 75384160.

The previous prime is 75384143. The next prime is 75384163. The reversal of 75384161 is 16148357.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62710561 + 12673600 = 7919^2 + 3560^2 .

It is an emirp because it is prime and its reverse (16148357) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75384161 - 2⁶ = 75384097 is a prime.

It is a Sophie Germain prime.

Together with 75384163, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (75384163) 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, 37692080 + 37692081.

It is an arithmetic number, because the mean of its divisors is an integer number (37692081).

Almost surely, 2^75384161 is an apocalyptic number.

It is an amenable number.

75384161 is a deficient number, since it is larger than the sum of its proper divisors (1).

75384161 is an equidigital number, since it uses as much as digits as its factorization.

75384161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 35.

The square root of 75384161 is about 8682.4052543060. The cubic root of 75384161 is about 422.4351377384.

The spelling of 75384161 in words is "seventy-five million, three hundred eighty-four thousand, one hundred sixty-one".