181327434 has 8 divisors (see below), whose sum is σ = 362654880. Its totient is φ = 60442476.

The previous prime is 181327411. The next prime is 181327493. The reversal of 181327434 is 434723181.

It is a sphenic number, since it is the product of 3 distinct primes.

181327434 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 181327395 and 181327404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15110614 + ... + 15110625.

It is an arithmetic number, because the mean of its divisors is an integer number (45331860).

Almost surely, 2^181327434 is an apocalyptic number.

181327434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

181327434 is a wasteful number, since it uses less digits than its factorization.

181327434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30221244.

The product of its digits is 16128, while the sum is 33.

The square root of 181327434 is about 13465.7875373110. The cubic root of 181327434 is about 566.0061784756.

The spelling of 181327434 in words is "one hundred eighty-one million, three hundred twenty-seven thousand, four hundred thirty-four".