4138149 has 4 divisors (see below), whose sum is σ = 5517536. Its totient is φ = 2758764.

The previous prime is 4138139. The next prime is 4138153. The reversal of 4138149 is 9418314.

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 not a de Polignac number, because 4138149 - 2⁸ = 4137893 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4138129) 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, 689689 + ... + 689694.

It is an arithmetic number, because the mean of its divisors is an integer number (1379384).

Almost surely, 2^4138149 is an apocalyptic number.

It is an amenable number.

4138149 is a deficient number, since it is larger than the sum of its proper divisors (1379387).

4138149 is a wasteful number, since it uses less digits than its factorization.

4138149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379386.

The product of its digits is 3456, while the sum is 30.

The square root of 4138149 is about 2034.2440856495. The cubic root of 4138149 is about 160.5469433051.

The spelling of 4138149 in words is "four million, one hundred thirty-eight thousand, one hundred forty-nine".