181346485 has 8 divisors (see below), whose sum is σ = 222923736. Its totient is φ = 141538560.

The previous prime is 181346479. The next prime is 181346519. The reversal of 181346485 is 584643181.

181346485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3017169 + 178329316 = 1737^2 + 13354^2 .

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

It is not a de Polignac number, because 181346485 - 2⁷ = 181346357 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 442104 + ... + 442513.

It is an arithmetic number, because the mean of its divisors is an integer number (27865467).

Almost surely, 2^181346485 is an apocalyptic number.

It is an amenable number.

181346485 is a deficient number, since it is larger than the sum of its proper divisors (41577251).

181346485 is an equidigital number, since it uses as much as digits as its factorization.

181346485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884663.

The product of its digits is 92160, while the sum is 40.

The square root of 181346485 is about 13466.4949040201. The cubic root of 181346485 is about 566.0260000875.

The spelling of 181346485 in words is "one hundred eighty-one million, three hundred forty-six thousand, four hundred eighty-five".