75401640133 has 2 divisors, whose sum is σ = 75401640134. Its totient is φ = 75401640132.

The previous prime is 75401640103. The next prime is 75401640151. The reversal of 75401640133 is 33104610457.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43738284769 + 31663355364 = 209137^2 + 177942^2 .

It is an emirp because it is prime and its reverse (33104610457) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75401640133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75401640103) 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, 37700820066 + 37700820067.

It is an arithmetic number, because the mean of its divisors is an integer number (37700820067).

Almost surely, 2^75401640133 is an apocalyptic number.

It is an amenable number.

75401640133 is a deficient number, since it is larger than the sum of its proper divisors (1).

75401640133 is an equidigital number, since it uses as much as digits as its factorization.

75401640133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 75401640133 in words is "seventy-five billion, four hundred one million, six hundred forty thousand, one hundred thirty-three".