198136252 has 12 divisors (see below), whose sum is σ = 357923776. Its totient is φ = 95872320.

The previous prime is 198136201. The next prime is 198136271. The reversal of 198136252 is 252631891.

It is a super-3 number, since 3×198136252³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 798813 + ... + 799060.

Almost surely, 2^198136252 is an apocalyptic number.

It is an amenable number.

198136252 is a deficient number, since it is larger than the sum of its proper divisors (159787524).

198136252 is a wasteful number, since it uses less digits than its factorization.

198136252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597908 (or 1597906 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The square root of 198136252 is about 14076.0879508477. The cubic root of 198136252 is about 582.9813315430.

The spelling of 198136252 in words is "one hundred ninety-eight million, one hundred thirty-six thousand, two hundred fifty-two".