198148135 has 16 divisors (see below), whose sum is σ = 244904832. Its totient is φ = 153792000.

The previous prime is 198148133. The next prime is 198148177. The reversal of 198148135 is 531841891.

It is a happy number.

198148135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 198148135 - 2¹ = 198148133 is a prime.

It is a super-3 number, since 3×198148135³ (a number of 26 digits) contains 333 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 (198148133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72850 + ... + 75520.

It is an arithmetic number, because the mean of its divisors is an integer number (15306552).

Almost surely, 2^198148135 is an apocalyptic number.

198148135 is a deficient number, since it is larger than the sum of its proper divisors (46756697).

198148135 is a wasteful number, since it uses less digits than its factorization.

198148135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3114.

The product of its digits is 34560, while the sum is 40.

The square root of 198148135 is about 14076.5100433311. The cubic root of 198148135 is about 582.9929858610.

The spelling of 198148135 in words is "one hundred ninety-eight million, one hundred forty-eight thousand, one hundred thirty-five".