125405124 has 48 divisors (see below), whose sum is σ = 333664128. Its totient is φ = 36315648.

The previous prime is 125405117. The next prime is 125405129. The reversal of 125405124 is 421504521.

It is a junction number, because it is equal to n+sod(n) for n = 125405094 and 125405103.

It is not an unprimeable number, because it can be changed into a prime (125405129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20992 + ... + 26295.

It is an arithmetic number, because the mean of its divisors is an integer number (6951336).

Almost surely, 2^125405124 is an apocalyptic number.

It is an amenable number.

125405124 is an abundant number, since it is smaller than the sum of its proper divisors (208259004).

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

125405124 is a wasteful number, since it uses less digits than its factorization.

125405124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47324 (or 47322 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 125405124 is about 11198.4429274788. The cubic root of 125405124 is about 500.5395828246.

Adding to 125405124 its reverse (421504521), we get a palindrome (546909645).

The spelling of 125405124 in words is "one hundred twenty-five million, four hundred five thousand, one hundred twenty-four".