672155 has 16 divisors (see below), whose sum is σ = 895968. Its totient is φ = 484000.

The previous prime is 672151. The next prime is 672167. The reversal of 672155 is 551276.

It is not a de Polignac number, because 672155 - 2² = 672151 is a prime.

It is a Duffinian number.

It is a plaindrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (672151) 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, 6605 + ... + 6705.

It is an arithmetic number, because the mean of its divisors is an integer number (55998).

2⁶⁷²¹⁵⁵ is an apocalyptic number.

672155 is a deficient number, since it is larger than the sum of its proper divisors (223813).

672155 is a wasteful number, since it uses less digits than its factorization.

672155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 117 counting only the distinct ones).

The product of its digits is 2100, while the sum is 26.

The square root of 672155 is about 819.8505961454. The cubic root of 672155 is about 87.5971166597.

It can be divided in two parts, 6721 and 55, that added together give a palindrome (6776).

The spelling of 672155 in words is "six hundred seventy-two thousand, one hundred fifty-five".