18936134 has 16 divisors (see below), whose sum is σ = 32762400. Its totient is φ = 8040384.

The previous prime is 18936121. The next prime is 18936139. The reversal of 18936134 is 43163981.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18936094 and 18936103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18936139) 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, 4679 + ... + 7730.

It is an arithmetic number, because the mean of its divisors is an integer number (2047650).

Almost surely, 2^18936134 is an apocalyptic number.

18936134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18936134 is a deficient number, since it is larger than the sum of its proper divisors (13826266).

18936134 is a wasteful number, since it uses less digits than its factorization.

18936134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12527.

The product of its digits is 15552, while the sum is 35.

The square root of 18936134 is about 4351.5668442528. The cubic root of 18936134 is about 266.5408465470.

The spelling of 18936134 in words is "eighteen million, nine hundred thirty-six thousand, one hundred thirty-four".