181304742 has 16 divisors (see below), whose sum is σ = 362741760. Its totient is φ = 60412872.

The previous prime is 181304713. The next prime is 181304777. The reversal of 181304742 is 247403181.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27763 + ... + 33665.

It is an arithmetic number, because the mean of its divisors is an integer number (22671360).

Almost surely, 2^181304742 is an apocalyptic number.

181304742 is an abundant number, since it is smaller than the sum of its proper divisors (181437018).

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

181304742 is a wasteful number, since it uses less digits than its factorization.

181304742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11027.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 181304742 is about 13464.9449311908. The cubic root of 181304742 is about 565.9825667736.

The spelling of 181304742 in words is "one hundred eighty-one million, three hundred four thousand, seven hundred forty-two".