3549149 has 4 divisors (see below), whose sum is σ = 3581820. Its totient is φ = 3516480.

The previous prime is 3549137. The next prime is 3549157. The reversal of 3549149 is 9419453.

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 2617924 + 931225 = 1618^2 + 965^2 .

It is a cyclic number.

It is not a de Polignac number, because 3549149 - 2¹² = 3545053 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 (3549179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16172 + ... + 16389.

It is an arithmetic number, because the mean of its divisors is an integer number (895455).

Almost surely, 2^3549149 is an apocalyptic number.

It is an amenable number.

3549149 is a deficient number, since it is larger than the sum of its proper divisors (32671).

3549149 is a wasteful number, since it uses less digits than its factorization.

3549149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32670.

The product of its digits is 19440, while the sum is 35.

The square root of 3549149 is about 1883.9185226543. The cubic root of 3549149 is about 152.5368396173.

The spelling of 3549149 in words is "three million, five hundred forty-nine thousand, one hundred forty-nine".