125871181601 has 8 divisors (see below), whose sum is σ = 145391311584. Its totient is φ = 107697267520.

The previous prime is 125871181549. The next prime is 125871181637. The reversal of 125871181601 is 106181178521.

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 125871181601 - 2⁶ = 125871181537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125871181901) 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, 336553775 + ... + 336554148.

It is an arithmetic number, because the mean of its divisors is an integer number (18173913948).

Almost surely, 2^125871181601 is an apocalyptic number.

125871181601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

125871181601 is a deficient number, since it is larger than the sum of its proper divisors (19520129983).

125871181601 is a wasteful number, since it uses less digits than its factorization.

125871181601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673107951.

The product of its (nonzero) digits is 26880, while the sum is 41.

The spelling of 125871181601 in words is "one hundred twenty-five billion, eight hundred seventy-one million, one hundred eighty-one thousand, six hundred one".