181063020 has 24 divisors (see below), whose sum is σ = 506976624. Its totient is φ = 48283456.

The previous prime is 181062991. The next prime is 181063079. The reversal of 181063020 is 20360181.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1508799 + ... + 1508918.

It is an arithmetic number, because the mean of its divisors is an integer number (21124026).

Almost surely, 2^181063020 is an apocalyptic number.

181063020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

181063020 is an abundant number, since it is smaller than the sum of its proper divisors (325913604).

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

181063020 is a wasteful number, since it uses less digits than its factorization.

181063020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3017729 (or 3017727 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 181063020 is about 13455.9659630961. The cubic root of 181063020 is about 565.7309254729.

The spelling of 181063020 in words is "one hundred eighty-one million, sixty-three thousand, twenty".