163540098 has 12 divisors (see below), whose sum is σ = 354336918. Its totient is φ = 54513360.

The previous prime is 163540079. The next prime is 163540123. The reversal of 163540098 is 890045361.

163540098 is a `hidden beast` number, since 163 + 5 + 400 + 98 = 666.

It can be written as a sum of positive squares in only one way, i.e., 163251729 + 288369 = 12777^2 + 537^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4542763 + ... + 4542798.

Almost surely, 2^163540098 is an apocalyptic number.

163540098 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

163540098 is an abundant number, since it is smaller than the sum of its proper divisors (190796820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163540098 is a wasteful number, since it uses less digits than its factorization.

163540098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9085569 (or 9085566 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 163540098 is about 12788.2797122991. The cubic root of 163540098 is about 546.8582284402.

The spelling of 163540098 in words is "one hundred sixty-three million, five hundred forty thousand, ninety-eight".