125132637547 has 4 divisors (see below), whose sum is σ = 125431283880. Its totient is φ = 124833991216.

The previous prime is 125132637517. The next prime is 125132637563. The reversal of 125132637547 is 745736231521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125132637547 - 2³⁵ = 90772899179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125132637497 and 125132637506.

It is not an unprimeable number, because it can be changed into a prime (125132637517) 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 in 3 ways as a sum of consecutive naturals, for example, 149322538 + ... + 149323375.

It is an arithmetic number, because the mean of its divisors is an integer number (31357820970).

Almost surely, 2^125132637547 is an apocalyptic number.

125132637547 is a deficient number, since it is larger than the sum of its proper divisors (298646333).

125132637547 is an equidigital number, since it uses as much as digits as its factorization.

125132637547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298646332.

The product of its digits is 1058400, while the sum is 46.

The spelling of 125132637547 in words is "one hundred twenty-five billion, one hundred thirty-two million, six hundred thirty-seven thousand, five hundred forty-seven".