281106001 has 4 divisors (see below), whose sum is σ = 306661104. Its totient is φ = 255550900.

The previous prime is 281105989. The next prime is 281106017. The reversal of 281106001 is 100601182.

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 not a de Polignac number, because 281106001 - 2¹³ = 281097809 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 281106001.

It is not an unprimeable number, because it can be changed into a prime (281106041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12777535 + ... + 12777556.

It is an arithmetic number, because the mean of its divisors is an integer number (76665276).

Almost surely, 2^281106001 is an apocalyptic number.

It is an amenable number.

281106001 is a deficient number, since it is larger than the sum of its proper divisors (25555103).

281106001 is a wasteful number, since it uses less digits than its factorization.

281106001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25555102.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 281106001 is about 16766.2160608767. The cubic root of 281106001 is about 655.0735119404.

Adding to 281106001 its reverse (100601182), we get a palindrome (381707183).

The spelling of 281106001 in words is "two hundred eighty-one million, one hundred six thousand, one".