671275155 has 16 divisors (see below), whose sum is σ = 1092245760. Its totient is φ = 351944928.

The previous prime is 671275139. The next prime is 671275159. The reversal of 671275155 is 551572176.

It is not a de Polignac number, because 671275155 - 2⁴ = 671275139 is a prime.

It is a super-2 number, since 2×671275155² = 901220667440548050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (671275159) 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 15 ways as a sum of consecutive naturals, for example, 378367 + ... + 380136.

It is an arithmetic number, because the mean of its divisors is an integer number (68265360).

Almost surely, 2^671275155 is an apocalyptic number.

671275155 is a deficient number, since it is larger than the sum of its proper divisors (420970605).

671275155 is a wasteful number, since it uses less digits than its factorization.

671275155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758570.

The product of its digits is 73500, while the sum is 39.

The square root of 671275155 is about 25908.9782700901. The cubic root of 671275155 is about 875.5887868462.

The spelling of 671275155 in words is "six hundred seventy-one million, two hundred seventy-five thousand, one hundred fifty-five".