18516134 has 16 divisors (see below), whose sum is σ = 34183968. Its totient is φ = 7324992.

The previous prime is 18516131. The next prime is 18516139. The reversal of 18516134 is 43161581.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18516097 and 18516106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18516131) 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, 50687 + ... + 51050.

It is an arithmetic number, because the mean of its divisors is an integer number (2136498).

Almost surely, 2^18516134 is an apocalyptic number.

18516134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18516134 is a deficient number, since it is larger than the sum of its proper divisors (15667834).

18516134 is a wasteful number, since it uses less digits than its factorization.

18516134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101759.

The product of its digits is 2880, while the sum is 29.

The square root of 18516134 is about 4303.0377641847. The cubic root of 18516134 is about 264.5554859457. Note that the first 3 decimals are identical.

The spelling of 18516134 in words is "eighteen million, five hundred sixteen thousand, one hundred thirty-four".