181841242 has 8 divisors (see below), whose sum is σ = 297558432. Its totient is φ = 82655100.

The previous prime is 181841213. The next prime is 181841249. The reversal of 181841242 is 242148181.

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

It is not an unprimeable number, because it can be changed into a prime (181841249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4132734 + ... + 4132777.

It is an arithmetic number, because the mean of its divisors is an integer number (37194804).

Almost surely, 2^181841242 is an apocalyptic number.

181841242 is a deficient number, since it is larger than the sum of its proper divisors (115717190).

181841242 is a wasteful number, since it uses less digits than its factorization.

181841242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8265524.

The product of its digits is 4096, while the sum is 31.

The square root of 181841242 is about 13484.8523165810. The cubic root of 181841242 is about 566.5402845413.

The spelling of 181841242 in words is "one hundred eighty-one million, eight hundred forty-one thousand, two hundred forty-two".