43155 has 24 divisors (see below), whose sum is σ = 86112. Its totient is φ = 19584.

The previous prime is 43151. The next prime is 43159. The reversal of 43155 is 55134.

It is an interprime number because it is at equal distance from previous prime (43151) and next prime (43159).

It is not a de Polignac number, because 43155 - 2² = 43151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 247 + ... + 383.

It is an arithmetic number, because the mean of its divisors is an integer number (3588).

2⁴³¹⁵⁵ is an apocalyptic number.

43155 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

43155 is a deficient number, since it is larger than the sum of its proper divisors (42957).

43155 is a wasteful number, since it uses less digits than its factorization.

43155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 152 counting only the distinct ones).

The product of its digits is 300, while the sum is 18.

The square root of 43155 is about 207.7378155272. The cubic root of 43155 is about 35.0760252185.

Adding to 43155 its reverse (55134), we get a palindrome (98289).

The spelling of 43155 in words is "forty-three thousand, one hundred fifty-five".