75912169 has 8 divisors (see below), whose sum is σ = 79034760. Its totient is φ = 72823296.

The previous prime is 75912143. The next prime is 75912217. The reversal of 75912169 is 96121957.

It can be written as a sum of positive squares in 4 ways, for example, as 21344400 + 54567769 = 4620^2 + 7387^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75912169 - 2⁷ = 75912041 is a prime.

It is a super-2 number, since 2×75912169² = 11525314804569122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75912269) 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 in 7 ways as a sum of consecutive naturals, for example, 3784 + ... + 12889.

It is an arithmetic number, because the mean of its divisors is an integer number (9879345).

Almost surely, 2^75912169 is an apocalyptic number.

It is an amenable number.

75912169 is a deficient number, since it is larger than the sum of its proper divisors (3122591).

75912169 is a wasteful number, since it uses less digits than its factorization.

75912169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16859.

The product of its digits is 34020, while the sum is 40.

The square root of 75912169 is about 8712.7589774996. The cubic root of 75912169 is about 423.4191215699.

The spelling of 75912169 in words is "seventy-five million, nine hundred twelve thousand, one hundred sixty-nine".