75147227 has 2 divisors, whose sum is σ = 75147228. Its totient is φ = 75147226.

The previous prime is 75147217. The next prime is 75147251. The reversal of 75147227 is 72274157.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75147227 - 2⁴ = 75147211 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75147217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37573613 + 37573614.

It is an arithmetic number, because the mean of its divisors is an integer number (37573614).

Almost surely, 2^75147227 is an apocalyptic number.

75147227 is a deficient number, since it is larger than the sum of its proper divisors (1).

75147227 is an equidigital number, since it uses as much as digits as its factorization.

75147227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27440, while the sum is 35.

The square root of 75147227 is about 8668.7500252343. The cubic root of 75147227 is about 421.9920990861.

It can be divided in two parts, 7514 and 7227, that added together give a palindrome (14741).

The spelling of 75147227 in words is "seventy-five million, one hundred forty-seven thousand, two hundred twenty-seven".