8155641 has 16 divisors (see below), whose sum is σ = 12116160. Its totient is φ = 4845120.

The previous prime is 8155621. The next prime is 8155657. The reversal of 8155641 is 1465518.

It is not a de Polignac number, because 8155641 - 2⁷ = 8155513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8155599 and 8155608.

It is not an unprimeable number, because it can be changed into a prime (8155621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2475 + ... + 4736.

It is an arithmetic number, because the mean of its divisors is an integer number (757260).

Almost surely, 2^8155641 is an apocalyptic number.

It is an amenable number.

8155641 is a deficient number, since it is larger than the sum of its proper divisors (3960519).

8155641 is a wasteful number, since it uses less digits than its factorization.

8155641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7256.

The product of its digits is 4800, while the sum is 30.

The square root of 8155641 is about 2855.8082918852. The cubic root of 8155641 is about 201.2886869288.

The spelling of 8155641 in words is "eight million, one hundred fifty-five thousand, six hundred forty-one".