125884471105 has 4 divisors (see below), whose sum is σ = 151061365332. Its totient is φ = 100707576880.

The previous prime is 125884471081. The next prime is 125884471117. The reversal of 125884471105 is 501174488521.

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

It can be written as a sum of positive squares in 2 ways, for example, as 86904681616 + 38979789489 = 294796^2 + 197433^2 .

It is not a de Polignac number, because 125884471105 - 2¹¹ = 125884469057 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 12588447106 + ... + 12588447115.

It is an arithmetic number, because the mean of its divisors is an integer number (37765341333).

Almost surely, 2^125884471105 is an apocalyptic number.

It is an amenable number.

125884471105 is a deficient number, since it is larger than the sum of its proper divisors (25176894227).

125884471105 is an equidigital number, since it uses as much as digits as its factorization.

125884471105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25176894226.

The product of its (nonzero) digits is 358400, while the sum is 46.

The spelling of 125884471105 in words is "one hundred twenty-five billion, eight hundred eighty-four million, four hundred seventy-one thousand, one hundred five".