75804161 has 2 divisors, whose sum is σ = 75804162. Its totient is φ = 75804160.

The previous prime is 75804107. The next prime is 75804181. The reversal of 75804161 is 16140857.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46036225 + 29767936 = 6785^2 + 5456^2 .

It is an emirp because it is prime and its reverse (16140857) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75804161 - 2¹⁸ = 75542017 is a prime.

It is a Chen prime.

It is equal to p_4438733 and since 75804161 and 4438733 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (75804101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37902080 + 37902081.

It is an arithmetic number, because the mean of its divisors is an integer number (37902081).

Almost surely, 2^75804161 is an apocalyptic number.

It is an amenable number.

75804161 is a deficient number, since it is larger than the sum of its proper divisors (1).

75804161 is an equidigital number, since it uses as much as digits as its factorization.

75804161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 75804161 is about 8706.5585049433. The cubic root of 75804161 is about 423.2182123712.

The spelling of 75804161 in words is "seventy-five million, eight hundred four thousand, one hundred sixty-one".