181222848 has 42 divisors (see below), whose sum is σ = 519444224. Its totient is φ = 60407424.

The previous prime is 181222823. The next prime is 181222871. The reversal of 181222848 is 848222181.

181222848 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×181222848² = 65683441274462208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 156736 + ... + 157887.

Almost surely, 2^181222848 is an apocalyptic number.

181222848 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

181222848 is an abundant number, since it is smaller than the sum of its proper divisors (338221376).

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

181222848 is a wasteful number, since it uses less digits than its factorization.

181222848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314641 (or 314628 counting only the distinct ones).

The product of its digits is 16384, while the sum is 36.

The square root of 181222848 is about 13461.9035801034. The cubic root of 181222848 is about 565.8973372381.

The spelling of 181222848 in words is "one hundred eighty-one million, two hundred twenty-two thousand, eight hundred forty-eight".