125134535663 has 16 divisors (see below), whose sum is σ = 136176453504. Its totient is φ = 114533552640.

The previous prime is 125134535639. The next prime is 125134535671. The reversal of 125134535663 is 366535431521.

It is a cyclic number.

It is not a de Polignac number, because 125134535663 - 2²² = 125130341359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125134535863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373328 + ... + 624213.

It is an arithmetic number, because the mean of its divisors is an integer number (8511028344).

Almost surely, 2^125134535663 is an apocalyptic number.

125134535663 is a deficient number, since it is larger than the sum of its proper divisors (11041917841).

125134535663 is a wasteful number, since it uses less digits than its factorization.

125134535663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997762.

The product of its digits is 972000, while the sum is 44.

The spelling of 125134535663 in words is "one hundred twenty-five billion, one hundred thirty-four million, five hundred thirty-five thousand, six hundred sixty-three".