198153 has 16 divisors (see below), whose sum is σ = 302400. Its totient is φ = 128160.

The previous prime is 198139. The next prime is 198173. The reversal of 198153 is 351891.

It is not a de Polignac number, because 198153 - 2⁹ = 197641 is a prime.

It is a super-2 number, since 2×198153² = 78529222818, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (198173) 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, 1018 + ... + 1196.

It is an arithmetic number, because the mean of its divisors is an integer number (18900).

2¹⁹⁸¹⁵³ is an apocalyptic number.

It is an amenable number.

198153 is a deficient number, since it is larger than the sum of its proper divisors (104247).

198153 is a wasteful number, since it uses less digits than its factorization.

198153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 223 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 198153 is about 445.1437969915. The cubic root of 198153 is about 58.2997757102.

It can be divided in two parts, 198 and 153, that added together give a triangular number (351 = T₂₆).

The spelling of 198153 in words is "one hundred ninety-eight thousand, one hundred fifty-three".