125481654979 has 2 divisors, whose sum is σ = 125481654980. Its totient is φ = 125481654978.

The previous prime is 125481654959. The next prime is 125481655007. The reversal of 125481654979 is 979456184521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125481654979 - 2²³ = 125473266371 is a prime.

It is not a weakly prime, because it can be changed into another prime (125481654959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62740827489 + 62740827490.

It is an arithmetic number, because the mean of its divisors is an integer number (62740827490).

Almost surely, 2^125481654979 is an apocalyptic number.

125481654979 is a deficient number, since it is larger than the sum of its proper divisors (1).

125481654979 is an equidigital number, since it uses as much as digits as its factorization.

125481654979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21772800, while the sum is 61.

The spelling of 125481654979 in words is "one hundred twenty-five billion, four hundred eighty-one million, six hundred fifty-four thousand, nine hundred seventy-nine".