139234613 has 8 divisors (see below), whose sum is σ = 160015680. Its totient is φ = 118676160.

The previous prime is 139234591. The next prime is 139234637. The reversal of 139234613 is 316432931.

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

It is a cyclic number.

It is not a de Polignac number, because 139234613 - 2⁶ = 139234549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 139234613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139234213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54308 + ... + 56813.

It is an arithmetic number, because the mean of its divisors is an integer number (20001960).

Almost surely, 2^139234613 is an apocalyptic number.

It is an amenable number.

139234613 is a deficient number, since it is larger than the sum of its proper divisors (20781067).

139234613 is a wasteful number, since it uses less digits than its factorization.

139234613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111307.

The product of its digits is 11664, while the sum is 32.

The square root of 139234613 is about 11799.7717350803. The cubic root of 139234613 is about 518.3014263596.

The spelling of 139234613 in words is "one hundred thirty-nine million, two hundred thirty-four thousand, six hundred thirteen".