3959149 has 4 divisors (see below), whose sum is σ = 3963420. Its totient is φ = 3954880.

The previous prime is 3959143. The next prime is 3959159. The reversal of 3959149 is 9419593.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2082249 + 1876900 = 1443^2 + 1370^2 .

It is a cyclic number.

It is not a de Polignac number, because 3959149 - 2³ = 3959141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3959141) 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, 94 + ... + 2815.

It is an arithmetic number, because the mean of its divisors is an integer number (990855).

Almost surely, 2^3959149 is an apocalyptic number.

It is an amenable number.

3959149 is a deficient number, since it is larger than the sum of its proper divisors (4271).

3959149 is a wasteful number, since it uses less digits than its factorization.

3959149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4270.

The product of its digits is 43740, while the sum is 40.

The square root of 3959149 is about 1989.7610409293. The cubic root of 3959149 is about 158.1978640585.

The spelling of 3959149 in words is "three million, nine hundred fifty-nine thousand, one hundred forty-nine".