125275140281 has 2 divisors, whose sum is σ = 125275140282. Its totient is φ = 125275140280.

The previous prime is 125275140269. The next prime is 125275140323. The reversal of 125275140281 is 182041572521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101738671225 + 23536469056 = 318965^2 + 153416^2 .

It is a cyclic number.

It is not a de Polignac number, because 125275140281 - 2³⁰ = 124201398457 is a prime.

It is a super-2 number, since 2×125275140281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125275140241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62637570140 + 62637570141.

It is an arithmetic number, because the mean of its divisors is an integer number (62637570141).

Almost surely, 2^125275140281 is an apocalyptic number.

It is an amenable number.

125275140281 is a deficient number, since it is larger than the sum of its proper divisors (1).

125275140281 is an equidigital number, since it uses as much as digits as its factorization.

125275140281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44800, while the sum is 38.

The spelling of 125275140281 in words is "one hundred twenty-five billion, two hundred seventy-five million, one hundred forty thousand, two hundred eighty-one".