125803678137 has 8 divisors (see below), whose sum is σ = 177605192736. Its totient is φ = 78935641152.

The previous prime is 125803678127. The next prime is 125803678139. The reversal of 125803678137 is 731876308521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125803678137 - 2¹⁰ = 125803677113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 2466738787 = 125803678137 / (1 + 2 + 5 + 8 + 0 + 3 + 6 + 7 + 8 + 1 + 3 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 125803678137.

It is not an unprimeable number, because it can be changed into a prime (125803678139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1233369343 + ... + 1233369444.

It is an arithmetic number, because the mean of its divisors is an integer number (22200649092).

Almost surely, 2^125803678137 is an apocalyptic number.

125803678137 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

125803678137 is a deficient number, since it is larger than the sum of its proper divisors (51801514599).

125803678137 is a wasteful number, since it uses less digits than its factorization.

125803678137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466738807.

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 125803678137 in words is "one hundred twenty-five billion, eight hundred three million, six hundred seventy-eight thousand, one hundred thirty-seven".