18125235 has 64 divisors (see below), whose sum is σ = 34283520. Its totient is φ = 9072000.

The previous prime is 18125201. The next prime is 18125251. The reversal of 18125235 is 53252181.

It is a happy number.

It is not a de Polignac number, because 18125235 - 2⁸ = 18124979 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 18125199 and 18125208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 255250 + ... + 255320.

It is an arithmetic number, because the mean of its divisors is an integer number (535680).

Almost surely, 2^18125235 is an apocalyptic number.

18125235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18125235 is a deficient number, since it is larger than the sum of its proper divisors (16158285).

18125235 is a wasteful number, since it uses less digits than its factorization.

18125235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 171 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 18125235 is about 4257.3741907425. The cubic root of 18125235 is about 262.6805288778.

The spelling of 18125235 in words is "eighteen million, one hundred twenty-five thousand, two hundred thirty-five".