181674842 has 8 divisors (see below), whose sum is σ = 273573396. Its totient is φ = 90483712.

The previous prime is 181674841. The next prime is 181674851. The reversal of 181674842 is 248476181.

181674842 is digitally balanced in base 3, 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 2 ways, for example, as 167469481 + 14205361 = 12941^2 + 3769^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 181674842.

It is not an unprimeable number, because it can be changed into a prime (181674841) by changing a digit.

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, 176213 + ... + 177240.

Almost surely, 2^181674842 is an apocalyptic number.

181674842 is a deficient number, since it is larger than the sum of its proper divisors (91898554).

181674842 is a wasteful number, since it uses less digits than its factorization.

181674842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353712.

The product of its digits is 86016, while the sum is 41.

The square root of 181674842 is about 13478.6810185567. The cubic root of 181674842 is about 566.3674211640.

The spelling of 181674842 in words is "one hundred eighty-one million, six hundred seventy-four thousand, eight hundred forty-two".