98813181 has 4 divisors (see below), whose sum is σ = 131750912. Its totient is φ = 65875452.

The previous prime is 98813177. The next prime is 98813207. The reversal of 98813181 is 18131889.

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 not a de Polignac number, because 98813181 - 2² = 98813177 is a prime.

It is a super-2 number, since 2×98813181² = 19528089478677522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98813101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16468861 + ... + 16468866.

It is an arithmetic number, because the mean of its divisors is an integer number (32937728).

Almost surely, 2^98813181 is an apocalyptic number.

It is an amenable number.

98813181 is a deficient number, since it is larger than the sum of its proper divisors (32937731).

98813181 is a wasteful number, since it uses less digits than its factorization.

98813181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32937730.

The product of its digits is 13824, while the sum is 39.

The square root of 98813181 is about 9940.4819299670. The cubic root of 98813181 is about 462.3153288536.

The spelling of 98813181 in words is "ninety-eight million, eight hundred thirteen thousand, one hundred eighty-one".