125171154161 has 8 divisors (see below), whose sum is σ = 125414637600. Its totient is φ = 124927872480.

The previous prime is 125171154137. The next prime is 125171154167. The reversal of 125171154161 is 161451171521.

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

It is a cyclic number.

It is not a de Polignac number, because 125171154161 - 2³⁰ = 124097412337 is a prime.

It is a super-2 number, since 2×125171154161² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125171154167) 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, 1222610 + ... + 1321028.

It is an arithmetic number, because the mean of its divisors is an integer number (15676829700).

Almost surely, 2^125171154161 is an apocalyptic number.

It is an amenable number.

125171154161 is a deficient number, since it is larger than the sum of its proper divisors (243483439).

125171154161 is an equidigital number, since it uses as much as digits as its factorization.

125171154161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100879.

The product of its digits is 8400, while the sum is 35.

The spelling of 125171154161 in words is "one hundred twenty-five billion, one hundred seventy-one million, one hundred fifty-four thousand, one hundred sixty-one".