125167281289 has 2 divisors, whose sum is σ = 125167281290. Its totient is φ = 125167281288.

The previous prime is 125167281203. The next prime is 125167281391. The reversal of 125167281289 is 982182761521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72083121289 + 53084160000 = 268483^2 + 230400^2 .

It is a cyclic number.

It is not a de Polignac number, because 125167281289 - 2²⁵ = 125133726857 is a prime.

It is not a weakly prime, because it can be changed into another prime (125167284289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62583640644 + 62583640645.

It is an arithmetic number, because the mean of its divisors is an integer number (62583640645).

Almost surely, 2^125167281289 is an apocalyptic number.

It is an amenable number.

125167281289 is a deficient number, since it is larger than the sum of its proper divisors (1).

125167281289 is an equidigital number, since it uses as much as digits as its factorization.

125167281289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 52.

The spelling of 125167281289 in words is "one hundred twenty-five billion, one hundred sixty-seven million, two hundred eighty-one thousand, two hundred eighty-nine".