18312134 has 8 divisors (see below), whose sum is σ = 28354368. Its totient is φ = 8860680.

The previous prime is 18312131. The next prime is 18312167. The reversal of 18312134 is 43121381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18312131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147617 + ... + 147740.

It is an arithmetic number, because the mean of its divisors is an integer number (3544296).

Almost surely, 2^18312134 is an apocalyptic number.

18312134 is a deficient number, since it is larger than the sum of its proper divisors (10042234).

18312134 is a wasteful number, since it uses less digits than its factorization.

18312134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295390.

The product of its digits is 576, while the sum is 23.

The square root of 18312134 is about 4279.2679280456. The cubic root of 18312134 is about 263.5803230216.

The spelling of 18312134 in words is "eighteen million, three hundred twelve thousand, one hundred thirty-four".