18539134 has 8 divisors (see below), whose sum is σ = 28487088. Its totient is φ = 9043440.

The previous prime is 18539123. The next prime is 18539137. The reversal of 18539134 is 43193581.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18539134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18539137) 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, 112962 + ... + 113125.

It is an arithmetic number, because the mean of its divisors is an integer number (3560886).

Almost surely, 2^18539134 is an apocalyptic number.

18539134 is a deficient number, since it is larger than the sum of its proper divisors (9947954).

18539134 is a wasteful number, since it uses less digits than its factorization.

18539134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226130.

The product of its digits is 12960, while the sum is 34.

The square root of 18539134 is about 4305.7094653495. The cubic root of 18539134 is about 264.6649806975.

The spelling of 18539134 in words is "eighteen million, five hundred thirty-nine thousand, one hundred thirty-four".