6216155 has 8 divisors (see below), whose sum is σ = 8137584. Its totient is φ = 4520800.

The previous prime is 6216149. The next prime is 6216191. The reversal of 6216155 is 5516126.

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

It is not a de Polignac number, because 6216155 - 2⁴ = 6216139 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56456 + ... + 56565.

It is an arithmetic number, because the mean of its divisors is an integer number (1017198).

Almost surely, 2^6216155 is an apocalyptic number.

6216155 is a deficient number, since it is larger than the sum of its proper divisors (1921429).

6216155 is a wasteful number, since it uses less digits than its factorization.

6216155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113037.

The product of its digits is 1800, while the sum is 26.

The square root of 6216155 is about 2493.2218112314. The cubic root of 6216155 is about 183.8684768193.

It can be divided in two parts, 621 and 6155, that added together give a palindrome (6776).

The spelling of 6216155 in words is "six million, two hundred sixteen thousand, one hundred fifty-five".