670155 has 16 divisors (see below), whose sum is σ = 1098240. Its totient is φ = 348768.

The previous prime is 670147. The next prime is 670177. The reversal of 670155 is 551076.

It is not a de Polignac number, because 670155 - 2³ = 670147 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 670155.

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 15 ways as a sum of consecutive naturals, for example, 126 + ... + 1164.

It is an arithmetic number, because the mean of its divisors is an integer number (68640).

2⁶⁷⁰¹⁵⁵ is an apocalyptic number.

670155 is a deficient number, since it is larger than the sum of its proper divisors (428085).

670155 is a wasteful number, since it uses less digits than its factorization.

670155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 670155 is about 818.6299530313. The cubic root of 670155 is about 87.5101484828.

The spelling of 670155 in words is "six hundred seventy thousand, one hundred fifty-five".