181536834 has 16 divisors (see below), whose sum is σ = 363240288. Its totient is φ = 60484512.

The previous prime is 181536821. The next prime is 181536877. The reversal of 181536834 is 438635181.

It is a junction number, because it is equal to n+sod(n) for n = 181536792 and 181536801.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10654 + ... + 21830.

It is an arithmetic number, because the mean of its divisors is an integer number (22702518).

Almost surely, 2^181536834 is an apocalyptic number.

181536834 is an abundant number, since it is smaller than the sum of its proper divisors (181703454).

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

181536834 is a wasteful number, since it uses less digits than its factorization.

181536834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13889.

The product of its digits is 69120, while the sum is 39.

The square root of 181536834 is about 13473.5605539145. The cubic root of 181536834 is about 566.2239725085.

The spelling of 181536834 in words is "one hundred eighty-one million, five hundred thirty-six thousand, eight hundred thirty-four".