5142842 has 4 divisors (see below), whose sum is σ = 7714266. Its totient is φ = 2571420.

The previous prime is 5142829. The next prime is 5142847. The reversal of 5142842 is 2482415.

It is a happy number.

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., 3845521 + 1297321 = 1961^2 + 1139^2 .

It is not an unprimeable number, because it can be changed into a prime (5142847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1285709 + ... + 1285712.

Almost surely, 2^5142842 is an apocalyptic number.

5142842 is a deficient number, since it is larger than the sum of its proper divisors (2571424).

5142842 is a wasteful number, since it uses less digits than its factorization.

5142842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571423.

The product of its digits is 2560, while the sum is 26.

The square root of 5142842 is about 2267.7834993667. The cubic root of 5142842 is about 172.6107053849.

The spelling of 5142842 in words is "five million, one hundred forty-two thousand, eight hundred forty-two".