181280046 has 8 divisors (see below), whose sum is σ = 362560104. Its totient is φ = 60426680.

The previous prime is 181280009. The next prime is 181280053. The reversal of 181280046 is 640082181.

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

181280046 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 181279995 and 181280022.

It is a congruent number.

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, 15106665 + ... + 15106676.

It is an arithmetic number, because the mean of its divisors is an integer number (45320013).

Almost surely, 2^181280046 is an apocalyptic number.

181280046 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.

181280046 is a wasteful number, since it uses less digits than its factorization.

181280046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30213346.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 181280046 is about 13464.0278520211. The cubic root of 181280046 is about 565.9568676109.

The spelling of 181280046 in words is "one hundred eighty-one million, two hundred eighty thousand, forty-six".