198183454 has 16 divisors (see below), whose sum is σ = 344815488. Its totient is φ = 83667672.

The previous prime is 198183413. The next prime is 198183457. The reversal of 198183454 is 454381891.

It is a self number, because there is not a number n which added to its sum of digits gives 198183454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198183457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104704 + ... + 106579.

It is an arithmetic number, because the mean of its divisors is an integer number (21550968).

Almost surely, 2^198183454 is an apocalyptic number.

198183454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

198183454 is a deficient number, since it is larger than the sum of its proper divisors (146632034).

198183454 is a wasteful number, since it uses less digits than its factorization.

198183454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211359.

The product of its digits is 138240, while the sum is 43.

The square root of 198183454 is about 14077.7645242418. The cubic root of 198183454 is about 583.0276224155.

The spelling of 198183454 in words is "one hundred ninety-eight million, one hundred eighty-three thousand, four hundred fifty-four".