125171622 has 64 divisors (see below), whose sum is σ = 286848000. Its totient is φ = 40439520.

The previous prime is 125171621. The next prime is 125171653. The reversal of 125171622 is 226171521.

125171622 is a `hidden beast` number, since 1 + 25 + 17 + 1 + 622 = 666.

It is a super-2 number, since 2×125171622² = 31335869908221768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125171621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 377997 + ... + 378327.

It is an arithmetic number, because the mean of its divisors is an integer number (4482000).

Almost surely, 2^125171622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125171622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143424000).

125171622 is an abundant number, since it is smaller than the sum of its proper divisors (161676378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125171622 is a wasteful number, since it uses less digits than its factorization.

125171622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538 (or 532 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 125171622 is about 11188.0124240188. The cubic root of 125171622 is about 500.2287246874.

The spelling of 125171622 in words is "one hundred twenty-five million, one hundred seventy-one thousand, six hundred twenty-two".