181068130 has 16 divisors (see below), whose sum is σ = 331266744. Its totient is φ = 71239680.

The previous prime is 181068113. The next prime is 181068133. The reversal of 181068130 is 31860181.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 132779529 + 48288601 = 11523^2 + 6949^2 .

It is not an unprimeable number, because it can be changed into a prime (181068133) 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 7 ways as a sum of consecutive naturals, for example, 147807 + ... + 149026.

Almost surely, 2^181068130 is an apocalyptic number.

181068130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

181068130 is a deficient number, since it is larger than the sum of its proper divisors (150198614).

181068130 is a wasteful number, since it uses less digits than its factorization.

181068130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296901.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 181068130 is about 13456.1558403580. The cubic root of 181068130 is about 565.7362474833.

The spelling of 181068130 in words is "one hundred eighty-one million, sixty-eight thousand, one hundred thirty".