75824161 has 4 divisors (see below), whose sum is σ = 86656192. Its totient is φ = 64992132.

The previous prime is 75824149. The next prime is 75824167. The reversal of 75824161 is 16142857.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16142857 = 61 ⋅264637.

It is a cyclic number.

It is not a de Polignac number, because 75824161 - 2¹¹ = 75822113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75824167) 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 in 3 ways as a sum of consecutive naturals, for example, 5416005 + ... + 5416018.

It is an arithmetic number, because the mean of its divisors is an integer number (21664048).

Almost surely, 2^75824161 is an apocalyptic number.

It is an amenable number.

75824161 is a deficient number, since it is larger than the sum of its proper divisors (10832031).

75824161 is a wasteful number, since it uses less digits than its factorization.

75824161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10832030.

The product of its digits is 13440, while the sum is 34.

The square root of 75824161 is about 8707.7069886394. The cubic root of 75824161 is about 423.2554294133.

The spelling of 75824161 in words is "seventy-five million, eight hundred twenty-four thousand, one hundred sixty-one".