125171512838 has 8 divisors (see below), whose sum is σ = 187781238360. Its totient is φ = 62577766720.

The previous prime is 125171512813. The next prime is 125171512849. The reversal of 125171512838 is 838215171521.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3975248 + ... + 4006611.

It is an arithmetic number, because the mean of its divisors is an integer number (23472654795).

Almost surely, 2^125171512838 is an apocalyptic number.

125171512838 is a deficient number, since it is larger than the sum of its proper divisors (62609725522).

125171512838 is an equidigital number, since it uses as much as digits as its factorization.

125171512838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7989702.

The product of its digits is 134400, while the sum is 44.

The spelling of 125171512838 in words is "one hundred twenty-five billion, one hundred seventy-one million, five hundred twelve thousand, eight hundred thirty-eight".