6513242 has 4 divisors (see below), whose sum is σ = 9769866. Its totient is φ = 3256620.

The previous prime is 6513239. The next prime is 6513281. The reversal of 6513242 is 2423156.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3924361 + 2588881 = 1981^2 + 1609^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1628309 + ... + 1628312.

Almost surely, 2^6513242 is an apocalyptic number.

6513242 is a deficient number, since it is larger than the sum of its proper divisors (3256624).

6513242 is a wasteful number, since it uses less digits than its factorization.

6513242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3256623.

The product of its digits is 1440, while the sum is 23.

The square root of 6513242 is about 2552.1054053467. The cubic root of 6513242 is about 186.7522049862.

Adding to 6513242 its reverse (2423156), we get a palindrome (8936398).

The spelling of 6513242 in words is "six million, five hundred thirteen thousand, two hundred forty-two".