98945181 has 6 divisors (see below), whose sum is σ = 142920830. Its totient is φ = 65963448.

The previous prime is 98945167. The next prime is 98945227. The reversal of 98945181 is 18154989.

It can be written as a sum of positive squares in only one way, i.e., 98188281 + 756900 = 9909^2 + 870^2 .

It is not a de Polignac number, because 98945181 - 2¹³ = 98936989 is a prime.

It is a super-2 number, since 2×98945181² = 19580297686245522, 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 (98945281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5496946 + ... + 5496963.

Almost surely, 2^98945181 is an apocalyptic number.

It is an amenable number.

98945181 is a deficient number, since it is larger than the sum of its proper divisors (43975649).

98945181 is a wasteful number, since it uses less digits than its factorization.

98945181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10993915 (or 10993912 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The square root of 98945181 is about 9947.1192312146. The cubic root of 98945181 is about 462.5210992079.

The spelling of 98945181 in words is "ninety-eight million, nine hundred forty-five thousand, one hundred eighty-one".