8100281 has 4 divisors (see below), whose sum is σ = 9257472. Its totient is φ = 6943092.

The previous prime is 8100263. The next prime is 8100283. The reversal of 8100281 is 1820018.

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 8100281 - 2⁶ = 8100217 is a prime.

It is a super-2 number, since 2×8100281² = 131229104557922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8100283) 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, 578585 + ... + 578598.

It is an arithmetic number, because the mean of its divisors is an integer number (2314368).

Almost surely, 2^8100281 is an apocalyptic number.

It is an amenable number.

8100281 is a deficient number, since it is larger than the sum of its proper divisors (1157191).

8100281 is a wasteful number, since it uses less digits than its factorization.

8100281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157190.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 8100281 is about 2846.0992603913. The cubic root of 8100281 is about 200.8322073516.

Adding to 8100281 its reverse (1820018), we get a palindrome (9920299).

The spelling of 8100281 in words is "eight million, one hundred thousand, two hundred eighty-one".