181794412 has 6 divisors (see below), whose sum is σ = 318140228. Its totient is φ = 90897204.

The previous prime is 181794407. The next prime is 181794419. The reversal of 181794412 is 214497181.

It is not an unprimeable number, because it can be changed into a prime (181794419) by changing a digit.

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 as a sum of consecutive naturals, namely, 22724298 + ... + 22724305.

Almost surely, 2^181794412 is an apocalyptic number.

It is an amenable number.

181794412 is a deficient number, since it is larger than the sum of its proper divisors (136345816).

181794412 is a wasteful number, since it uses less digits than its factorization.

181794412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45448607 (or 45448605 counting only the distinct ones).

The product of its digits is 16128, while the sum is 37.

The square root of 181794412 is about 13483.1158120073. The cubic root of 181794412 is about 566.4916462179.

The spelling of 181794412 in words is "one hundred eighty-one million, seven hundred ninety-four thousand, four hundred twelve".