198318054 has 32 divisors (see below), whose sum is σ = 436909824. Its totient is φ = 59510880.

The previous prime is 198318047. The next prime is 198318061. The reversal of 198318054 is 450813891.

It is an interprime number because it is at equal distance from previous prime (198318047) and next prime (198318061).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7789 + ... + 21384.

It is an arithmetic number, because the mean of its divisors is an integer number (13653432).

Almost surely, 2^198318054 is an apocalyptic number.

198318054 is an abundant number, since it is smaller than the sum of its proper divisors (238591770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198318054 is a wasteful number, since it uses less digits than its factorization.

198318054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29292.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 198318054 is about 14082.5443013683. The cubic root of 198318054 is about 583.1595839172.

The spelling of 198318054 in words is "one hundred ninety-eight million, three hundred eighteen thousand, fifty-four".