125654071289 has 2 divisors, whose sum is σ = 125654071290. Its totient is φ = 125654071288.

The previous prime is 125654071253. The next prime is 125654071307. The reversal of 125654071289 is 982170456521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120490211689 + 5163859600 = 347117^2 + 71860^2 .

It is a cyclic number.

It is not a de Polignac number, because 125654071289 - 2⁸ = 125654071033 is a prime.

It is not a weakly prime, because it can be changed into another prime (125654071189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62827035644 + 62827035645.

It is an arithmetic number, because the mean of its divisors is an integer number (62827035645).

Almost surely, 2^125654071289 is an apocalyptic number.

It is an amenable number.

125654071289 is a deficient number, since it is larger than the sum of its proper divisors (1).

125654071289 is an equidigital number, since it uses as much as digits as its factorization.

125654071289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 125654071289 in words is "one hundred twenty-five billion, six hundred fifty-four million, seventy-one thousand, two hundred eighty-nine".