6142447 has 4 divisors (see below), whose sum is σ = 6147576. Its totient is φ = 6137320.

The previous prime is 6142441. The next prime is 6142463. The reversal of 6142447 is 7442416.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6142447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6142441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297 + ... + 3517.

It is an arithmetic number, because the mean of its divisors is an integer number (1536894).

Almost surely, 2^6142447 is an apocalyptic number.

6142447 is a deficient number, since it is larger than the sum of its proper divisors (5129).

6142447 is a wasteful number, since it uses less digits than its factorization.

6142447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5128.

The product of its digits is 5376, while the sum is 28.

The square root of 6142447 is about 2478.3960539026. The cubic root of 6142447 is about 183.1388457267.

The spelling of 6142447 in words is "six million, one hundred forty-two thousand, four hundred forty-seven".