124005825 has 36 divisors (see below), whose sum is σ = 222842880. Its totient is φ = 65917920.

The previous prime is 124005821. The next prime is 124005839. The reversal of 124005825 is 528500421.

It is a happy number.

It is not a de Polignac number, because 124005825 - 2² = 124005821 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (124005821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 85456 + ... + 86894.

It is an arithmetic number, because the mean of its divisors is an integer number (6190080).

Almost surely, 2^124005825 is an apocalyptic number.

124005825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

124005825 is a deficient number, since it is larger than the sum of its proper divisors (98837055).

124005825 is a wasteful number, since it uses less digits than its factorization.

124005825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838 (or 1830 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 124005825 is about 11135.7902728096. The cubic root of 124005825 is about 498.6709034686.

It can be divided in two parts, 12400 and 5825, that added together give a square (18225 = 135²).

The spelling of 124005825 in words is "one hundred twenty-four million, five thousand, eight hundred twenty-five".