18534135 has 16 divisors (see below), whose sum is σ = 29712384. Its totient is φ = 9865632.

The previous prime is 18534079. The next prime is 18534137. The reversal of 18534135 is 53143581.

It is not a de Polignac number, because 18534135 - 2¹⁵ = 18501367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18534137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10314 + ... + 11976.

It is an arithmetic number, because the mean of its divisors is an integer number (1857024).

Almost surely, 2^18534135 is an apocalyptic number.

18534135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18534135 is a deficient number, since it is larger than the sum of its proper divisors (11178249).

18534135 is a wasteful number, since it uses less digits than its factorization.

18534135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414.

The product of its digits is 7200, while the sum is 30.

The square root of 18534135 is about 4305.1289179303. The cubic root of 18534135 is about 264.6411899570.

The spelling of 18534135 in words is "eighteen million, five hundred thirty-four thousand, one hundred thirty-five".