181225346 has 8 divisors (see below), whose sum is σ = 272458560. Its totient is φ = 90405828.

The previous prime is 181225309. The next prime is 181225351. The reversal of 181225346 is 643522181.

181225346 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102326 + ... + 104081.

It is an arithmetic number, because the mean of its divisors is an integer number (34057320).

Almost surely, 2^181225346 is an apocalyptic number.

181225346 is a deficient number, since it is larger than the sum of its proper divisors (91233214).

181225346 is a wasteful number, since it uses less digits than its factorization.

181225346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206848.

The product of its digits is 11520, while the sum is 32.

The square root of 181225346 is about 13461.9963601243. The cubic root of 181225346 is about 565.8999373611.

The spelling of 181225346 in words is "one hundred eighty-one million, two hundred twenty-five thousand, three hundred forty-six".