3999141 has 6 divisors (see below), whose sum is σ = 5776550. Its totient is φ = 2666088.

The previous prime is 3999113. The next prime is 3999143. The reversal of 3999141 is 1419993.

3999141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3048516 + 950625 = 1746^2 + 975^2 .

It is not a de Polignac number, because 3999141 - 2⁵ = 3999109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3999096 and 3999105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3999143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 222166 + ... + 222183.

Almost surely, 2^3999141 is an apocalyptic number.

It is an amenable number.

3999141 is a deficient number, since it is larger than the sum of its proper divisors (1777409).

3999141 is a wasteful number, since it uses less digits than its factorization.

3999141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444355 (or 444352 counting only the distinct ones).

The product of its digits is 8748, while the sum is 36.

The square root of 3999141 is about 1999.7852384694. The cubic root of 3999141 is about 158.7287412374.

The spelling of 3999141 in words is "three million, nine hundred ninety-nine thousand, one hundred forty-one".