75788161 has 2 divisors, whose sum is σ = 75788162. Its totient is φ = 75788160.

The previous prime is 75788129. The next prime is 75788171. The reversal of 75788161 is 16188757.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72250000 + 3538161 = 8500^2 + 1881^2 .

It is a cyclic number.

It is not a de Polignac number, because 75788161 - 2⁵ = 75788129 is a prime.

It is not a weakly prime, because it can be changed into another prime (75788171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37894080 + 37894081.

It is an arithmetic number, because the mean of its divisors is an integer number (37894081).

Almost surely, 2^75788161 is an apocalyptic number.

It is an amenable number.

75788161 is a deficient number, since it is larger than the sum of its proper divisors (1).

75788161 is an equidigital number, since it uses as much as digits as its factorization.

75788161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 43.

The square root of 75788161 is about 8705.6396088972. The cubic root of 75788161 is about 423.1884340240.

The spelling of 75788161 in words is "seventy-five million, seven hundred eighty-eight thousand, one hundred sixty-one".