18132534 has 24 divisors (see below), whose sum is σ = 44899920. Its totient is φ = 5180688.

The previous prime is 18132509. The next prime is 18132539. The reversal of 18132534 is 43523181.

It is a happy number.

It is a super-2 number, since 2×18132534² = 657577578522312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18132498 and 18132507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18132539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71829 + ... + 72080.

It is an arithmetic number, because the mean of its divisors is an integer number (1870830).

Almost surely, 2^18132534 is an apocalyptic number.

18132534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18132534 is an abundant number, since it is smaller than the sum of its proper divisors (26767386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18132534 is a wasteful number, since it uses less digits than its factorization.

18132534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143924 (or 143921 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 18132534 is about 4258.2313229791. The cubic root of 18132534 is about 262.7157844735.

The spelling of 18132534 in words is "eighteen million, one hundred thirty-two thousand, five hundred thirty-four".