198299145 has 16 divisors (see below), whose sum is σ = 346122432. Its totient is φ = 96144960.

The previous prime is 198299113. The next prime is 198299147. The reversal of 198299145 is 541992891.

198299145 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 198299145 - 2⁵ = 198299113 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 198299094 and 198299103.

It is not an unprimeable number, because it can be changed into a prime (198299147) 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, 600742 + ... + 601071.

It is an arithmetic number, because the mean of its divisors is an integer number (21632652).

Almost surely, 2^198299145 is an apocalyptic number.

198299145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

198299145 is a deficient number, since it is larger than the sum of its proper divisors (147823287).

198299145 is a wasteful number, since it uses less digits than its factorization.

198299145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201832.

The product of its digits is 233280, while the sum is 48.

The square root of 198299145 is about 14081.8729223069. The cubic root of 198299145 is about 583.1410491867.

It can be divided in two parts, 1982991 and 45, that added together give a triangular number (1983036 = T₁₉₉₁).

The spelling of 198299145 in words is "one hundred ninety-eight million, two hundred ninety-nine thousand, one hundred forty-five".