75171427 has 4 divisors (see below), whose sum is σ = 75763456. Its totient is φ = 74579400.

The previous prime is 75171413. The next prime is 75171431. The reversal of 75171427 is 72417157.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72417157 = 4871 ⋅14867.

It is a cyclic number.

It is not a de Polignac number, because 75171427 - 2¹¹ = 75169379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75171392 and 75171401.

It is not an unprimeable number, because it can be changed into a prime (75171407) 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 3 ways as a sum of consecutive naturals, for example, 295824 + ... + 296077.

It is an arithmetic number, because the mean of its divisors is an integer number (18940864).

Almost surely, 2^75171427 is an apocalyptic number.

75171427 is a deficient number, since it is larger than the sum of its proper divisors (592029).

75171427 is a wasteful number, since it uses less digits than its factorization.

75171427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592028.

The product of its digits is 13720, while the sum is 34.

The square root of 75171427 is about 8670.1457311858. The cubic root of 75171427 is about 422.0373928966.

The spelling of 75171427 in words is "seventy-five million, one hundred seventy-one thousand, four hundred twenty-seven".