4043149 has 4 divisors (see below), whose sum is σ = 4410720. Its totient is φ = 3675580.

The previous prime is 4043129. The next prime is 4043159. The reversal of 4043149 is 9413404.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4043149 - 2¹¹ = 4041101 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 (4043119) 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, 183769 + ... + 183790.

It is an arithmetic number, because the mean of its divisors is an integer number (1102680).

Almost surely, 2^4043149 is an apocalyptic number.

It is an amenable number.

4043149 is a deficient number, since it is larger than the sum of its proper divisors (367571).

4043149 is a wasteful number, since it uses less digits than its factorization.

4043149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367570.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 4043149 is about 2010.7583146664. The cubic root of 4043149 is about 159.3088547251.

It can be divided in two parts, 404 and 3149, that added together give a palindrome (3553).

The spelling of 4043149 in words is "four million, forty-three thousand, one hundred forty-nine".