181270342 has 12 divisors (see below), whose sum is σ = 298871748. Its totient is φ = 82395500.

The previous prime is 181270339. The next prime is 181270351. The reversal of 181270342 is 243072181.

It is a self number, because there is not a number n which added to its sum of digits gives 181270342.

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 5 ways as a sum of consecutive naturals, for example, 374284 + ... + 374767.

It is an arithmetic number, because the mean of its divisors is an integer number (24905979).

Almost surely, 2^181270342 is an apocalyptic number.

181270342 is a deficient number, since it is larger than the sum of its proper divisors (117601406).

181270342 is a wasteful number, since it uses less digits than its factorization.

181270342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749075 (or 749064 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 181270342 is about 13463.6674795540. The cubic root of 181270342 is about 565.9467687913.

The spelling of 181270342 in words is "one hundred eighty-one million, two hundred seventy thousand, three hundred forty-two".