123844725 has 36 divisors (see below), whose sum is σ = 223118532. Its totient is φ = 65664000.

The previous prime is 123844709. The next prime is 123844727. The reversal of 123844725 is 527448321.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3218436 + 120626289 = 1794^2 + 10983^2 .

It is not a de Polignac number, because 123844725 - 2⁴ = 123844709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123844725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123844727) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 39205 + ... + 42245.

It is an arithmetic number, because the mean of its divisors is an integer number (6197737).

Almost surely, 2^123844725 is an apocalyptic number.

123844725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123844725 is a deficient number, since it is larger than the sum of its proper divisors (99273807).

123844725 is a wasteful number, since it uses less digits than its factorization.

123844725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238 (or 3230 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 123844725 is about 11128.5544883421. The cubic root of 123844725 is about 498.4548633574.

The spelling of 123844725 in words is "one hundred twenty-three million, eight hundred forty-four thousand, seven hundred twenty-five".