98131181 has 4 divisors (see below), whose sum is σ = 103296000. Its totient is φ = 92966364.

The previous prime is 98131171. The next prime is 98131207. The reversal of 98131181 is 18113189.

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 a cyclic number.

It is not a de Polignac number, because 98131181 - 2²² = 93936877 is a prime.

It is a super-2 number, since 2×98131181² = 19259457368909522, 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 (98131171) 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, 2582381 + ... + 2582418.

It is an arithmetic number, because the mean of its divisors is an integer number (25824000).

Almost surely, 2^98131181 is an apocalyptic number.

It is an amenable number.

98131181 is a deficient number, since it is larger than the sum of its proper divisors (5164819).

98131181 is a wasteful number, since it uses less digits than its factorization.

98131181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5164818.

The product of its digits is 1728, while the sum is 32.

The square root of 98131181 is about 9906.1183619014. The cubic root of 98131181 is about 461.2492523300.

The spelling of 98131181 in words is "ninety-eight million, one hundred thirty-one thousand, one hundred eighty-one".