8155281 has 8 divisors (see below), whose sum is σ = 11167744. Its totient is φ = 5289840.

The previous prime is 8155267. The next prime is 8155283. The reversal of 8155281 is 1825518.

8155281 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8155281 - 2¹⁰ = 8154257 is a prime.

It is a super-2 number, since 2×8155281² = 133017216377922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8155283) 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 7 ways as a sum of consecutive naturals, for example, 36625 + ... + 36846.

It is an arithmetic number, because the mean of its divisors is an integer number (1395968).

Almost surely, 2^8155281 is an apocalyptic number.

It is an amenable number.

8155281 is a deficient number, since it is larger than the sum of its proper divisors (3012463).

8155281 is a wasteful number, since it uses less digits than its factorization.

8155281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73511.

The product of its digits is 3200, while the sum is 30.

The square root of 8155281 is about 2855.7452617487. The cubic root of 8155281 is about 201.2857251754.

The spelling of 8155281 in words is "eight million, one hundred fifty-five thousand, two hundred eighty-one".