125546134004689 has 2 divisors, whose sum is σ = 125546134004690. Its totient is φ = 125546134004688.

The previous prime is 125546134004659. The next prime is 125546134004717. The reversal of 125546134004689 is 986400431645521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111452529323664 + 14093604681025 = 10557108^2 + 3754145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125546134004689 is a prime.

It is not a weakly prime, because it can be changed into another prime (125546134004659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62773067002344 + 62773067002345.

It is an arithmetic number, because the mean of its divisors is an integer number (62773067002345).

Almost surely, 2^{125546134004689} is an apocalyptic number.

It is an amenable number.

125546134004689 is a deficient number, since it is larger than the sum of its proper divisors (1).

125546134004689 is an equidigital number, since it uses as much as digits as its factorization.

125546134004689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24883200, while the sum is 58.

The spelling of 125546134004689 in words is "one hundred twenty-five trillion, five hundred forty-six billion, one hundred thirty-four million, four thousand, six hundred eighty-nine".