131098105 has 8 divisors (see below), whose sum is σ = 157417992. Its totient is φ = 104811648.

The previous prime is 131098103. The next prime is 131098109. The reversal of 131098105 is 501890131.

It can be written as a sum of positive squares in 4 ways, for example, as 1752976 + 129345129 = 1324^2 + 11373^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131098105 - 2¹ = 131098103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131098103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1287 + ... + 16243.

It is an arithmetic number, because the mean of its divisors is an integer number (19677249).

Almost surely, 2^131098105 is an apocalyptic number.

It is an amenable number.

131098105 is a deficient number, since it is larger than the sum of its proper divisors (26319887).

131098105 is a wasteful number, since it uses less digits than its factorization.

131098105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16715.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 131098105 is about 11449.8080769941. The cubic root of 131098105 is about 508.0020576208.

The spelling of 131098105 in words is "one hundred thirty-one million, ninety-eight thousand, one hundred five".