198481455 has 16 divisors (see below), whose sum is σ = 352856160. Its totient is φ = 105856704.

The previous prime is 198481453. The next prime is 198481457. The reversal of 198481455 is 554184891.

It is a happy number.

198481455 is a `hidden beast` number, since 198 + 4 + 8 + 1 + 455 = 666.

It is an interprime number because it is at equal distance from previous prime (198481453) and next prime (198481457).

It is not a de Polignac number, because 198481455 - 2¹ = 198481453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 198481455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198481453) 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, 734982 + ... + 735251.

It is an arithmetic number, because the mean of its divisors is an integer number (22053510).

Almost surely, 2^198481455 is an apocalyptic number.

198481455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

198481455 is a deficient number, since it is larger than the sum of its proper divisors (154374705).

198481455 is a wasteful number, since it uses less digits than its factorization.

198481455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470247 (or 1470241 counting only the distinct ones).

The product of its digits is 230400, while the sum is 45.

The square root of 198481455 is about 14088.3446508098. The cubic root of 198481455 is about 583.3197016316.

It can be divided in two parts, 19848145 and 5, that added together give a triangular number (19848150 = T₆₃₀₀).

The spelling of 198481455 in words is "one hundred ninety-eight million, four hundred eighty-one thousand, four hundred fifty-five".