6418149 has 4 divisors (see below), whose sum is σ = 8557536. Its totient is φ = 4278764.

The previous prime is 6418133. The next prime is 6418171. The reversal of 6418149 is 9418146.

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 6418149 - 2⁴ = 6418133 is a prime.

It is a D-number.

6418149 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6418189) 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, 1069689 + ... + 1069694.

It is an arithmetic number, because the mean of its divisors is an integer number (2139384).

Almost surely, 2^6418149 is an apocalyptic number.

It is an amenable number.

6418149 is a deficient number, since it is larger than the sum of its proper divisors (2139387).

6418149 is a wasteful number, since it uses less digits than its factorization.

6418149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139386.

The product of its digits is 6912, while the sum is 33.

The square root of 6418149 is about 2533.4065998177. The cubic root of 6418149 is about 185.8388881196.

It can be divided in two parts, 6 and 418149, that added together give a triangular number (418155 = T₉₁₄).

The spelling of 6418149 in words is "six million, four hundred eighteen thousand, one hundred forty-nine".