18772125 has 32 divisors (see below), whose sum is σ = 31584384. Its totient is φ = 9900800.

The previous prime is 18772121. The next prime is 18772139. The reversal of 18772125 is 52127781.

It is not a de Polignac number, because 18772125 - 2² = 18772121 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18772121) 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 31 ways as a sum of consecutive naturals, for example, 42154 + ... + 42596.

It is an arithmetic number, because the mean of its divisors is an integer number (987012).

Almost surely, 2^18772125 is an apocalyptic number.

18772125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18772125 is a deficient number, since it is larger than the sum of its proper divisors (12812259).

18772125 is a wasteful number, since it uses less digits than its factorization.

18772125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574 (or 564 counting only the distinct ones).

The product of its digits is 7840, while the sum is 33.

The square root of 18772125 is about 4332.6810406491. The cubic root of 18772125 is about 265.7690959806.

The spelling of 18772125 in words is "eighteen million, seven hundred seventy-two thousand, one hundred twenty-five".