7216149 has 12 divisors (see below), whose sum is σ = 9945888. Its totient is φ = 4653720.

The previous prime is 7216141. The next prime is 7216151. The reversal of 7216149 is 9416127.

It is a happy number.

It is not a de Polignac number, because 7216149 - 2³ = 7216141 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7216141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1632 + ... + 4134.

It is an arithmetic number, because the mean of its divisors is an integer number (828824).

Almost surely, 2^7216149 is an apocalyptic number.

It is an amenable number.

7216149 is a deficient number, since it is larger than the sum of its proper divisors (2729739).

7216149 is a wasteful number, since it uses less digits than its factorization.

7216149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568 (or 2537 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 7216149 is about 2686.2890760304. The cubic root of 7216149 is about 193.2421366028.

The spelling of 7216149 in words is "seven million, two hundred sixteen thousand, one hundred forty-nine".