75284161 has 4 divisors (see below), whose sum is σ = 75301632. Its totient is φ = 75266692.

The previous prime is 75284149. The next prime is 75284171. The reversal of 75284161 is 16148257.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16148257 = 73 ⋅221209.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75284161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75284171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2856 + ... + 12598.

It is an arithmetic number, because the mean of its divisors is an integer number (18825408).

Almost surely, 2^75284161 is an apocalyptic number.

It is an amenable number.

75284161 is a deficient number, since it is larger than the sum of its proper divisors (17471).

75284161 is an equidigital number, since it uses as much as digits as its factorization.

75284161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17470.

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

The square root of 75284161 is about 8676.6445703394. The cubic root of 75284161 is about 422.2482629086.

The spelling of 75284161 in words is "seventy-five million, two hundred eighty-four thousand, one hundred sixty-one".