124140125 has 8 divisors (see below), whose sum is σ = 154927032. Its totient is φ = 99312000.

The previous prime is 124140101. The next prime is 124140127. The reversal of 124140125 is 521041421.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 37687321 + 86452804 = 6139^2 + 9298^2 .

It is not a de Polignac number, because 124140125 - 2¹⁰ = 124139101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 124140097 and 124140106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124140127) 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, 496436 + ... + 496685.

It is an arithmetic number, because the mean of its divisors is an integer number (19365879).

Almost surely, 2^124140125 is an apocalyptic number.

It is an amenable number.

124140125 is a deficient number, since it is larger than the sum of its proper divisors (30786907).

124140125 is an frugal number, since it uses more digits than its factorization.

124140125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993136 (or 993126 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 124140125 is about 11141.8187474039. The cubic root of 124140125 is about 498.8508609823.

Adding to 124140125 its reverse (521041421), we get a palindrome (645181546).

The spelling of 124140125 in words is "one hundred twenty-four million, one hundred forty thousand, one hundred twenty-five".