18906125 has 64 divisors (see below), whose sum is σ = 30191616. Its totient is φ = 11520000.

The previous prime is 18906067. The next prime is 18906131. The reversal of 18906125 is 52160981.

It is not a de Polignac number, because 18906125 - 2⁶ = 18906061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18906091 and 18906100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 461105 + ... + 461145.

It is an arithmetic number, because the mean of its divisors is an integer number (471744).

Almost surely, 2^18906125 is an apocalyptic number.

It is an amenable number.

18906125 is a deficient number, since it is larger than the sum of its proper divisors (11285491).

18906125 is a wasteful number, since it uses less digits than its factorization.

18906125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 18906125 is about 4348.1174087184. The cubic root of 18906125 is about 266.3999720817.

The spelling of 18906125 in words is "eighteen million, nine hundred six thousand, one hundred twenty-five".