125137736805 has 16 divisors (see below), whose sum is σ = 203208744384. Its totient is φ = 65744004480.

The previous prime is 125137736791. The next prime is 125137736807. The reversal of 125137736805 is 508637731521.

It is not a de Polignac number, because 125137736805 - 2²⁵ = 125104182373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125137736807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62256576 + ... + 62258585.

It is an arithmetic number, because the mean of its divisors is an integer number (12700546524).

Almost surely, 2^125137736805 is an apocalyptic number.

125137736805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125137736805 is a deficient number, since it is larger than the sum of its proper divisors (78071007579).

125137736805 is a wasteful number, since it uses less digits than its factorization.

125137736805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124515236.

The product of its (nonzero) digits is 1058400, while the sum is 48.

The spelling of 125137736805 in words is "one hundred twenty-five billion, one hundred thirty-seven million, seven hundred thirty-six thousand, eight hundred five".