6740149 has 4 divisors (see below), whose sum is σ = 7258636. Its totient is φ = 6221664.

The previous prime is 6740147. The next prime is 6740171. The reversal of 6740149 is 9410476.

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 2537649 + 4202500 = 1593^2 + 2050^2 .

It is a cyclic number.

It is not a de Polignac number, because 6740149 - 2¹ = 6740147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6740149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6740141) 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, 259224 + ... + 259249.

It is an arithmetic number, because the mean of its divisors is an integer number (1814659).

Almost surely, 2^6740149 is an apocalyptic number.

It is an amenable number.

6740149 is a deficient number, since it is larger than the sum of its proper divisors (518487).

6740149 is a wasteful number, since it uses less digits than its factorization.

6740149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518486.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 6740149 is about 2596.1796933186. The cubic root of 6740149 is about 188.8961758178.

It can be divided in two parts, 6740 and 149, that added together give a square (6889 = 83²).

The spelling of 6740149 in words is "six million, seven hundred forty thousand, one hundred forty-nine".