168484881 has 4 divisors (see below), whose sum is σ = 224646512. Its totient is φ = 112323252.

The previous prime is 168484871. The next prime is 168484891. The reversal of 168484881 is 188484861.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (168484871) and next prime (168484891).

It is not a de Polignac number, because 168484881 - 2⁷ = 168484753 is a prime.

It is a super-2 number, since 2×168484881² = 56774310251168322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 168484881.

It is not an unprimeable number, because it can be changed into a prime (168484871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28080811 + ... + 28080816.

It is an arithmetic number, because the mean of its divisors is an integer number (56161628).

Almost surely, 2^168484881 is an apocalyptic number.

It is an amenable number.

168484881 is a deficient number, since it is larger than the sum of its proper divisors (56161631).

168484881 is an equidigital number, since it uses as much as digits as its factorization.

168484881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56161630.

The product of its digits is 393216, while the sum is 48.

The square root of 168484881 is about 12980.1726105626. The cubic root of 168484881 is about 552.3151785184.

The spelling of 168484881 in words is "one hundred sixty-eight million, four hundred eighty-four thousand, eight hundred eighty-one".