181008130 has 16 divisors (see below), whose sum is σ = 326088504. Its totient is φ = 72342400.

The previous prime is 181008089. The next prime is 181008133. The reversal of 181008130 is 31800181.

181008130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 94536729 + 86471401 = 9723^2 + 9299^2 .

181008130 is a modest number, since divided by 8130 gives 1810 as remainder.

It is not an unprimeable number, because it can be changed into a prime (181008133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6054 + ... + 19966.

Almost surely, 2^181008130 is an apocalyptic number.

181008130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

181008130 is a deficient number, since it is larger than the sum of its proper divisors (145080374).

181008130 is a wasteful number, since it uses less digits than its factorization.

181008130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15221.

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 181008130 is about 13453.9261927513. The cubic root of 181008130 is about 565.6737518086.

The spelling of 181008130 in words is "one hundred eighty-one million, eight thousand, one hundred thirty".