275318538133 has 2 divisors, whose sum is σ = 275318538134. Its totient is φ = 275318538132.

The previous prime is 275318538101. The next prime is 275318538151. The reversal of 275318538133 is 331835813572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208248933649 + 67069604484 = 456343^2 + 258978^2 .

It is a cyclic number.

It is not a de Polignac number, because 275318538133 - 2⁵ = 275318538101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275318530133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137659269066 + 137659269067.

It is an arithmetic number, because the mean of its divisors is an integer number (137659269067).

Almost surely, 2^275318538133 is an apocalyptic number.

It is an amenable number.

275318538133 is a deficient number, since it is larger than the sum of its proper divisors (1).

275318538133 is an equidigital number, since it uses as much as digits as its factorization.

275318538133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 49.

The spelling of 275318538133 in words is "two hundred seventy-five billion, three hundred eighteen million, five hundred thirty-eight thousand, one hundred thirty-three".