4085149 has 4 divisors (see below), whose sum is σ = 4216960. Its totient is φ = 3953340.

The previous prime is 4085119. The next prime is 4085167. The reversal of 4085149 is 9415804.

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 4085149 - 2⁹ = 4084637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 131779 = 4085149 / (4 + 0 + 8 + 5 + 1 + 4 + 9).

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 4085149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4085119) 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, 65859 + ... + 65920.

It is an arithmetic number, because the mean of its divisors is an integer number (1054240).

Almost surely, 2^4085149 is an apocalyptic number.

It is an amenable number.

4085149 is a deficient number, since it is larger than the sum of its proper divisors (131811).

4085149 is a wasteful number, since it uses less digits than its factorization.

4085149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131810.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 4085149 is about 2021.1751532215. The cubic root of 4085149 is about 159.8585859873.

The spelling of 4085149 in words is "four million, eighty-five thousand, one hundred forty-nine".