125816124 has 36 divisors (see below), whose sum is σ = 341502504. Its totient is φ = 35947296.

The previous prime is 125816077. The next prime is 125816129. The reversal of 125816124 is 421618521.

It is a junction number, because it is equal to n+sod(n) for n = 125816091 and 125816100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125816129) 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 11 ways as a sum of consecutive naturals, for example, 106399 + ... + 107574.

Almost surely, 2^125816124 is an apocalyptic number.

125816124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

125816124 is an abundant number, since it is smaller than the sum of its proper divisors (215686380).

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

125816124 is a wasteful number, since it uses less digits than its factorization.

125816124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213994 (or 213985 counting only the distinct ones).

The product of its digits is 3840, while the sum is 30.

The square root of 125816124 is about 11216.7786819568. The cubic root of 125816124 is about 501.0858056785.

The spelling of 125816124 in words is "one hundred twenty-five million, eight hundred sixteen thousand, one hundred twenty-four".