123868825 has 12 divisors (see below), whose sum is σ = 154048300. Its totient is φ = 98804160.

The previous prime is 123868819. The next prime is 123868837. The reversal of 123868825 is 528868321.

It can be written as a sum of positive squares in 6 ways, for example, as 12418576 + 111450249 = 3524^2 + 10557^2 .

It is not a de Polignac number, because 123868825 - 2⁵ = 123868793 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1627 + ... + 15823.

Almost surely, 2^123868825 is an apocalyptic number.

It is an amenable number.

123868825 is a deficient number, since it is larger than the sum of its proper divisors (30179475).

123868825 is a wasteful number, since it uses less digits than its factorization.

123868825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14556 (or 14551 counting only the distinct ones).

The product of its digits is 184320, while the sum is 43.

The square root of 123868825 is about 11129.6372357773. The cubic root of 123868825 is about 498.4871941196.

The spelling of 123868825 in words is "one hundred twenty-three million, eight hundred sixty-eight thousand, eight hundred twenty-five".