988874181 has 6 divisors (see below), whose sum is σ = 1428373830. Its totient is φ = 659249448.

The previous prime is 988874149. The next prime is 988874189. The reversal of 988874181 is 181478889.

It is a happy number.

988874181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 583657281 + 405216900 = 24159^2 + 20130^2 .

It is not a de Polignac number, because 988874181 - 2⁵ = 988874149 is a prime.

It is a super-2 number, since 2×988874181² = 1955744291696841522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988874189) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54937446 + ... + 54937463.

It is an arithmetic number, because the mean of its divisors is an integer number (238062305).

Almost surely, 2^988874181 is an apocalyptic number.

It is an amenable number.

988874181 is a deficient number, since it is larger than the sum of its proper divisors (439499649).

988874181 is a wasteful number, since it uses less digits than its factorization.

988874181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109874915 (or 109874912 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 54.

The square root of 988874181 is about 31446.3699176868. The cubic root of 988874181 is about 996.2775542578.

The spelling of 988874181 in words is "nine hundred eighty-eight million, eight hundred seventy-four thousand, one hundred eighty-one".