125120124 has 18 divisors (see below), whose sum is σ = 316275960. Its totient is φ = 41706696.

The previous prime is 125120087. The next prime is 125120131. The reversal of 125120124 is 421021521.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 125120097 and 125120106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1737744 + ... + 1737815.

Almost surely, 2^125120124 is an apocalyptic number.

It is an amenable number.

125120124 is an abundant number, since it is smaller than the sum of its proper divisors (191155836).

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

125120124 is a wasteful number, since it uses less digits than its factorization.

125120124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3475569 (or 3475564 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 125120124 is about 11185.7107060750. The cubic root of 125120124 is about 500.1601140548.

Adding to 125120124 its reverse (421021521), we get a palindrome (546141645).

The spelling of 125120124 in words is "one hundred twenty-five million, one hundred twenty thousand, one hundred twenty-four".