198071954 has 8 divisors (see below), whose sum is σ = 297216000. Its totient is φ = 98999956.

The previous prime is 198071893. The next prime is 198071957. The reversal of 198071954 is 459170891.

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

It is a super-2 number, since 2×198071954² = 78464997922756232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (198071957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10514 + ... + 22509.

It is an arithmetic number, because the mean of its divisors is an integer number (37152000).

Almost surely, 2^198071954 is an apocalyptic number.

198071954 is a deficient number, since it is larger than the sum of its proper divisors (99144046).

198071954 is a wasteful number, since it uses less digits than its factorization.

198071954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36024.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 198071954 is about 14073.8038212844. The cubic root of 198071954 is about 582.9182628403.

The spelling of 198071954 in words is "one hundred ninety-eight million, seventy-one thousand, nine hundred fifty-four".