6181216 has 12 divisors (see below), whose sum is σ = 12169332. Its totient is φ = 3090592.

The previous prime is 6181187. The next prime is 6181223. The reversal of 6181216 is 6121816.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96550 + ... + 96613.

It is an arithmetic number, because the mean of its divisors is an integer number (1014111).

Almost surely, 2^6181216 is an apocalyptic number.

It is an amenable number.

6181216 is a deficient number, since it is larger than the sum of its proper divisors (5988116).

6181216 is a wasteful number, since it uses less digits than its factorization.

6181216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193173 (or 193165 counting only the distinct ones).

The product of its digits is 576, while the sum is 25.

The square root of 6181216 is about 2486.2051403696. The cubic root of 6181216 is about 183.5233409318.

It can be divided in two parts, 618121 and 6, that multiplied together give a triangular number (3708726 = T₂₇₂₃).

The spelling of 6181216 in words is "six million, one hundred eighty-one thousand, two hundred sixteen".