8101281 has 4 divisors (see below), whose sum is σ = 10801712. Its totient is φ = 5400852.

The previous prime is 8101273. The next prime is 8101283. The reversal of 8101281 is 1821018.

8101281 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 8101281 - 2³ = 8101273 is a prime.

It is a super-2 number, since 2×8101281² = 131261507681922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8101283) 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, 1350211 + ... + 1350216.

It is an arithmetic number, because the mean of its divisors is an integer number (2700428).

Almost surely, 2^8101281 is an apocalyptic number.

It is an amenable number.

8101281 is a deficient number, since it is larger than the sum of its proper divisors (2700431).

8101281 is a wasteful number, since it uses less digits than its factorization.

8101281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2700430.

The product of its (nonzero) digits is 128, while the sum is 21.

The square root of 8101281 is about 2846.2749340146. The cubic root of 8101281 is about 200.8404714247.

Adding to 8101281 its reverse (1821018), we get a palindrome (9922299).

The spelling of 8101281 in words is "eight million, one hundred one thousand, two hundred eighty-one".