282001121 has 4 divisors (see below), whose sum is σ = 282163200. Its totient is φ = 281839044.

The previous prime is 282001103. The next prime is 282001123. The reversal of 282001121 is 121100282.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 282001121 - 2²² = 277806817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 282001121.

It is not an unprimeable number, because it can be changed into a prime (282001123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78401 + ... + 81918.

It is an arithmetic number, because the mean of its divisors is an integer number (70540800).

Almost surely, 2^282001121 is an apocalyptic number.

It is an amenable number.

282001121 is a deficient number, since it is larger than the sum of its proper divisors (162079).

282001121 is a wasteful number, since it uses less digits than its factorization.

282001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162078.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 282001121 is about 16792.8890010028. The cubic root of 282001121 is about 655.7680875461.

The spelling of 282001121 in words is "two hundred eighty-two million, one thousand, one hundred twenty-one".