139340834 has 8 divisors (see below), whose sum is σ = 209061840. Its totient is φ = 69653556.

The previous prime is 139340833. The next prime is 139340849. The reversal of 139340834 is 438043931.

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 = 139340794 and 139340803.

It is not an unprimeable number, because it can be changed into a prime (139340833) 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, 9677 + ... + 19295.

It is an arithmetic number, because the mean of its divisors is an integer number (26132730).

Almost surely, 2^139340834 is an apocalyptic number.

139340834 is a deficient number, since it is larger than the sum of its proper divisors (69721006).

139340834 is an equidigital number, since it uses as much as digits as its factorization.

139340834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16864.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 139340834 is about 11804.2718538671. The cubic root of 139340834 is about 518.4331955615.

The spelling of 139340834 in words is "one hundred thirty-nine million, three hundred forty thousand, eight hundred thirty-four".