7182149 has 4 divisors (see below), whose sum is σ = 7734636. Its totient is φ = 6629664.

The previous prime is 7182139. The next prime is 7182151. The reversal of 7182149 is 9412817.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1809025 + 5373124 = 1345^2 + 2318^2 .

It is a cyclic number.

It is not a de Polignac number, because 7182149 - 2²⁰ = 6133573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7182139) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 276224 + ... + 276249.

It is an arithmetic number, because the mean of its divisors is an integer number (1933659).

Almost surely, 2^7182149 is an apocalyptic number.

It is an amenable number.

7182149 is a deficient number, since it is larger than the sum of its proper divisors (552487).

7182149 is a wasteful number, since it uses less digits than its factorization.

7182149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552486.

The product of its digits is 4032, while the sum is 32.

The square root of 7182149 is about 2679.9531712327. The cubic root of 7182149 is about 192.9381619746.

The spelling of 7182149 in words is "seven million, one hundred eighty-two thousand, one hundred forty-nine".