75217141 has 2 divisors, whose sum is σ = 75217142. Its totient is φ = 75217140.

The previous prime is 75217133. The next prime is 75217151. The reversal of 75217141 is 14171257.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49420900 + 25796241 = 7030^2 + 5079^2 .

It is a cyclic number.

It is not a de Polignac number, because 75217141 - 2³ = 75217133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75217151) 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, 37608570 + 37608571.

It is an arithmetic number, because the mean of its divisors is an integer number (37608571).

Almost surely, 2^75217141 is an apocalyptic number.

It is an amenable number.

75217141 is a deficient number, since it is larger than the sum of its proper divisors (1).

75217141 is an equidigital number, since it uses as much as digits as its factorization.

75217141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1960, while the sum is 28.

The square root of 75217141 is about 8672.7816183737. The cubic root of 75217141 is about 422.1229267605.

Adding to 75217141 its reverse (14171257), we get a palindrome (89388398).

The spelling of 75217141 in words is "seventy-five million, two hundred seventeen thousand, one hundred forty-one".