18308134 has 16 divisors (see below), whose sum is σ = 31132080. Its totient is φ = 8004960.

The previous prime is 18308123. The next prime is 18308137. The reversal of 18308134 is 43180381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18308137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18037 + ... + 19024.

It is an arithmetic number, because the mean of its divisors is an integer number (1945755).

Almost surely, 2^18308134 is an apocalyptic number.

18308134 is a deficient number, since it is larger than the sum of its proper divisors (12823946).

18308134 is a wasteful number, since it uses less digits than its factorization.

18308134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37095.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 18308134 is about 4278.8005328596. The cubic root of 18308134 is about 263.5611299541.

The spelling of 18308134 in words is "eighteen million, three hundred eight thousand, one hundred thirty-four".