98122581 has 12 divisors (see below), whose sum is σ = 143195052. Its totient is φ = 64740096.

The previous prime is 98122571. The next prime is 98122597. The reversal of 98122581 is 18522189.

It can be written as a sum of positive squares in 2 ways, for example, as 75168900 + 22953681 = 8670^2 + 4791^2 .

It is not a de Polignac number, because 98122581 - 2⁹ = 98122069 is a prime.

It is a super-2 number, since 2×98122581² = 19256081804203122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98122571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55326 + ... + 57071.

It is an arithmetic number, because the mean of its divisors is an integer number (11932921).

Almost surely, 2^98122581 is an apocalyptic number.

It is an amenable number.

98122581 is a deficient number, since it is larger than the sum of its proper divisors (45072471).

98122581 is a wasteful number, since it uses less digits than its factorization.

98122581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112500 (or 112497 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 98122581 is about 9905.6842772218. The cubic root of 98122581 is about 461.2357776477.

The spelling of 98122581 in words is "ninety-eight million, one hundred twenty-two thousand, five hundred eighty-one".