180888081 has 16 divisors (see below), whose sum is σ = 263700480. Its totient is φ = 109383120.

The previous prime is 180888073. The next prime is 180888083.

180888081 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 180888081 - 2³ = 180888073 is a prime.

It is a super-2 number, since 2×180888081² = 65440995695725122, which contains 22 as substring.

180888081 is a strobogrammatic number because it is the same when read upside-down.

It is not an unprimeable number, because it can be changed into a prime (180888083) 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, 9360 + ... + 21198.

It is an arithmetic number, because the mean of its divisors is an integer number (16481280).

Almost surely, 2^180888081 is an apocalyptic number.

180888081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

180888081 is a deficient number, since it is larger than the sum of its proper divisors (82812399).

180888081 is a wasteful number, since it uses less digits than its factorization.

180888081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12316.

The product of its (nonzero) digits is 32768, while the sum is 42.

The square root of 180888081 is about 13449.4639670137. The cubic root of 180888081 is about 565.5486679489.

The spelling of 180888081 in words is "one hundred eighty million, eight hundred eighty-eight thousand, eighty-one".