198854949 has 8 divisors (see below), whose sum is σ = 267228160. Its totient is φ = 131525856.

The previous prime is 198854927. The next prime is 198854959. The reversal of 198854949 is 949458891.

198854949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 198854949 - 2⁵ = 198854917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198854959) 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, 260584 + ... + 261345.

It is an arithmetic number, because the mean of its divisors is an integer number (33403520).

Almost surely, 2^198854949 is an apocalyptic number.

It is an amenable number.

198854949 is a deficient number, since it is larger than the sum of its proper divisors (68373211).

198854949 is a wasteful number, since it uses less digits than its factorization.

198854949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522059.

The product of its digits is 3732480, while the sum is 57.

The square root of 198854949 is about 14101.5938460870. The cubic root of 198854949 is about 583.6853611404.

The spelling of 198854949 in words is "one hundred ninety-eight million, eight hundred fifty-four thousand, nine hundred forty-nine".