6480155 has 12 divisors (see below), whose sum is σ = 8548176. Its totient is φ = 4712400.

The previous prime is 6480139. The next prime is 6480163. The reversal of 6480155 is 5510846.

It is a happy number.

It is not a de Polignac number, because 6480155 - 2⁴ = 6480139 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 4751 + ... + 5960.

It is an arithmetic number, because the mean of its divisors is an integer number (712348).

Almost surely, 2^6480155 is an apocalyptic number.

6480155 is a deficient number, since it is larger than the sum of its proper divisors (2068021).

6480155 is a wasteful number, since it uses less digits than its factorization.

6480155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10738 (or 10727 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 6480155 is about 2545.6148569648. The cubic root of 6480155 is about 186.4354368301.

The spelling of 6480155 in words is "six million, four hundred eighty thousand, one hundred fifty-five".