181100130 has 32 divisors (see below), whose sum is σ = 436860864. Its totient is φ = 48046656.

The previous prime is 181100123. The next prime is 181100131. The reversal of 181100130 is 31001181.

181100130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (181100131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9412 + ... + 21231.

It is an arithmetic number, because the mean of its divisors is an integer number (13651902).

Almost surely, 2^181100130 is an apocalyptic number.

181100130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

181100130 is an abundant number, since it is smaller than the sum of its proper divisors (255760734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

181100130 is a wasteful number, since it uses less digits than its factorization.

181100130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30850.

The product of its (nonzero) digits is 24, while the sum is 15.

The square root of 181100130 is about 13457.3448346990. The cubic root of 181100130 is about 565.7695728649.

The spelling of 181100130 in words is "one hundred eighty-one million, one hundred thousand, one hundred thirty".