125873281437 has 16 divisors (see below), whose sum is σ = 172499048640. Its totient is φ = 81612432000.

The previous prime is 125873281433. The next prime is 125873281453. The reversal of 125873281437 is 734182378521.

It is not a de Polignac number, because 125873281437 - 2² = 125873281433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125873281437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125873281433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3847939 + ... + 3880512.

It is an arithmetic number, because the mean of its divisors is an integer number (10781190540).

Almost surely, 2^125873281437 is an apocalyptic number.

It is an amenable number.

125873281437 is a deficient number, since it is larger than the sum of its proper divisors (46625767203).

125873281437 is an equidigital number, since it uses as much as digits as its factorization.

125873281437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7728604.

The product of its digits is 2257920, while the sum is 51.

The spelling of 125873281437 in words is "one hundred twenty-five billion, eight hundred seventy-three million, two hundred eighty-one thousand, four hundred thirty-seven".