6139359242 has 4 divisors (see below), whose sum is σ = 9209038866. Its totient is φ = 3069679620.

The previous prime is 6139359181. The next prime is 6139359253. The reversal of 6139359242 is 2429539316.

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., 4042543561 + 2096815681 = 63581^2 + 45791^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6139359193 and 6139359202.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1534839809 + ... + 1534839812.

Almost surely, 2^6139359242 is an apocalyptic number.

6139359242 is a deficient number, since it is larger than the sum of its proper divisors (3069679624).

6139359242 is a wasteful number, since it uses less digits than its factorization.

6139359242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3069679623.

The product of its digits is 349920, while the sum is 44.

The square root of 6139359242 is about 78354.0633407100. The cubic root of 6139359242 is about 1831.0815311524.

The spelling of 6139359242 in words is "six billion, one hundred thirty-nine million, three hundred fifty-nine thousand, two hundred forty-two".