139706135 has 8 divisors (see below), whose sum is σ = 167880480. Its totient is φ = 111609504.

The previous prime is 139706123. The next prime is 139706141. The reversal of 139706135 is 531607931.

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 139706135 - 2¹⁸ = 139443991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139706095 and 139706104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15395 + ... + 22724.

It is an arithmetic number, because the mean of its divisors is an integer number (20985060).

Almost surely, 2^139706135 is an apocalyptic number.

139706135 is a deficient number, since it is larger than the sum of its proper divisors (28174345).

139706135 is an equidigital number, since it uses as much as digits as its factorization.

139706135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38857.

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 139706135 is about 11819.7349801085. The cubic root of 139706135 is about 518.8858480041.

The spelling of 139706135 in words is "one hundred thirty-nine million, seven hundred six thousand, one hundred thirty-five".