139834042 has 8 divisors (see below), whose sum is σ = 209829600. Its totient is φ = 69890844.

The previous prime is 139834039. The next prime is 139834049. The reversal of 139834042 is 240438931.

139834042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 139833989 and 139834007.

It is not an unprimeable number, because it can be changed into a prime (139834049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5542 + ... + 17617.

It is an arithmetic number, because the mean of its divisors is an integer number (26228700).

Almost surely, 2^139834042 is an apocalyptic number.

139834042 is a deficient number, since it is larger than the sum of its proper divisors (69995558).

139834042 is a wasteful number, since it uses less digits than its factorization.

139834042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26180.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 139834042 is about 11825.1444811469. The cubic root of 139834042 is about 519.0441538362.

The spelling of 139834042 in words is "one hundred thirty-nine million, eight hundred thirty-four thousand, forty-two".