98180281 has 4 divisors (see below), whose sum is σ = 100574964. Its totient is φ = 95785600.

The previous prime is 98180273. The next prime is 98180297. The reversal of 98180281 is 18208189.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47485881 + 50694400 = 6891^2 + 7120^2 .

It is a cyclic number.

It is not a de Polignac number, because 98180281 - 2³ = 98180273 is a prime.

It is a super-2 number, since 2×98180281² = 19278735154477922, 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 98180281.

It is not an unprimeable number, because it can be changed into a prime (98180231) 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, 1197280 + ... + 1197361.

It is an arithmetic number, because the mean of its divisors is an integer number (25143741).

Almost surely, 2^98180281 is an apocalyptic number.

It is an amenable number.

98180281 is a deficient number, since it is larger than the sum of its proper divisors (2394683).

98180281 is a wasteful number, since it uses less digits than its factorization.

98180281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394682.

The product of its (nonzero) digits is 9216, while the sum is 37.

The square root of 98180281 is about 9908.5963183490. The cubic root of 98180281 is about 461.3261682905.

The spelling of 98180281 in words is "ninety-eight million, one hundred eighty thousand, two hundred eighty-one".