139834895 has 4 divisors (see below), whose sum is σ = 167801880. Its totient is φ = 111867912.

The previous prime is 139834867. The next prime is 139834907. The reversal of 139834895 is 598438931.

139834895 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 598438931 = 22669 ⋅26399.

It is a cyclic number.

It is not a de Polignac number, because 139834895 - 2¹² = 139830799 is a prime.

It is a super-2 number, since 2×139834895² = 39107595719322050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13983485 + ... + 13983494.

It is an arithmetic number, because the mean of its divisors is an integer number (41950470).

Almost surely, 2^139834895 is an apocalyptic number.

139834895 is a deficient number, since it is larger than the sum of its proper divisors (27966985).

139834895 is an equidigital number, since it uses as much as digits as its factorization.

139834895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27966984.

The product of its digits is 933120, while the sum is 50.

The square root of 139834895 is about 11825.1805483045. The cubic root of 139834895 is about 519.0452092391.

The spelling of 139834895 in words is "one hundred thirty-nine million, eight hundred thirty-four thousand, eight hundred ninety-five".