125317550127 has 128 divisors (see below), whose sum is σ = 230989824000. Its totient is φ = 59681059200.

The previous prime is 125317550119. The next prime is 125317550143. The reversal of 125317550127 is 721055713521.

It is a happy number.

It is not a de Polignac number, because 125317550127 - 2³ = 125317550119 is a prime.

It is a super-2 number, since 2×125317550127² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125317550147) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6657493 + ... + 6676289.

It is an arithmetic number, because the mean of its divisors is an integer number (1804608000).

Almost surely, 2^125317550127 is an apocalyptic number.

125317550127 is a deficient number, since it is larger than the sum of its proper divisors (105672273873).

125317550127 is a wasteful number, since it uses less digits than its factorization.

125317550127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18882 (or 18868 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 39.

It can be divided in two parts, 1253175 and 50127, that multiplied together give a square (62817903225 = 250635²).

The spelling of 125317550127 in words is "one hundred twenty-five billion, three hundred seventeen million, five hundred fifty thousand, one hundred twenty-seven".