4320155 has 8 divisors (see below), whose sum is σ = 5924832. Its totient is φ = 2962368.

The previous prime is 4320119. The next prime is 4320187. The reversal of 4320155 is 5510234.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4320155 - 2¹⁰ = 4319131 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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61682 + ... + 61751.

It is an arithmetic number, because the mean of its divisors is an integer number (740604).

Almost surely, 2^4320155 is an apocalyptic number.

4320155 is a deficient number, since it is larger than the sum of its proper divisors (1604677).

4320155 is a wasteful number, since it uses less digits than its factorization.

4320155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123445.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 4320155 is about 2078.4982559531. The cubic root of 4320155 is about 162.8670048184.

Adding to 4320155 its reverse (5510234), we get a palindrome (9830389).

The spelling of 4320155 in words is "four million, three hundred twenty thousand, one hundred fifty-five".