281148198 has 8 divisors (see below), whose sum is σ = 562296408. Its totient is φ = 93716064.

The previous prime is 281148121. The next prime is 281148223. The reversal of 281148198 is 891841182.

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

281148198 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23429011 + ... + 23429022.

It is an arithmetic number, because the mean of its divisors is an integer number (70287051).

Almost surely, 2^281148198 is an apocalyptic number.

281148198 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

281148198 is a wasteful number, since it uses less digits than its factorization.

281148198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46858038.

The product of its digits is 36864, while the sum is 42.

The square root of 281148198 is about 16767.4744073161. The cubic root of 281148198 is about 655.1062881338.

The spelling of 281148198 in words is "two hundred eighty-one million, one hundred forty-eight thousand, one hundred ninety-eight".