6305142 has 16 divisors (see below), whose sum is σ = 12640752. Its totient is φ = 2096640.

The previous prime is 6305141. The next prime is 6305149. The reversal of 6305142 is 2415036.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6305141) 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 7 ways as a sum of consecutive naturals, for example, 2118 + ... + 4134.

It is an arithmetic number, because the mean of its divisors is an integer number (790047).

Almost surely, 2^6305142 is an apocalyptic number.

6305142 is an abundant number, since it is smaller than the sum of its proper divisors (6335610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6305142 is a wasteful number, since it uses less digits than its factorization.

6305142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 6305142 is about 2511.0041815975. The cubic root of 6305142 is about 184.7417091880.

Subtracting from 6305142 its sum of digits (21), we obtain a square (6305121 = 2511²).

The spelling of 6305142 in words is "six million, three hundred five thousand, one hundred forty-two".