139834115 has 4 divisors (see below), whose sum is σ = 167800944. Its totient is φ = 111867288.

The previous prime is 139834109. The next prime is 139834117. The reversal of 139834115 is 511438931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 511438931 = 17 ⋅30084643.

It is a cyclic number.

It is not a de Polignac number, because 139834115 - 2⁴ = 139834099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139834117) 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, 13983407 + ... + 13983416.

It is an arithmetic number, because the mean of its divisors is an integer number (41950236).

Almost surely, 2^139834115 is an apocalyptic number.

139834115 is a deficient number, since it is larger than the sum of its proper divisors (27966829).

139834115 is an equidigital number, since it uses as much as digits as its factorization.

139834115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27966828.

The product of its digits is 12960, while the sum is 35.

The square root of 139834115 is about 11825.1475677896. The cubic root of 139834115 is about 519.0442441581.

The spelling of 139834115 in words is "one hundred thirty-nine million, eight hundred thirty-four thousand, one hundred fifteen".