139895 has 12 divisors (see below), whose sum is σ = 195624. Its totient is φ = 95760.

The previous prime is 139891. The next prime is 139901. The reversal of 139895 is 598931.

139895 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 139895 - 2² = 139891 is a prime.

It is a super-2 number, since 2×139895² = 39141222050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a plaindrome in base 16.

It is a zygodrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41 + ... + 530.

It is an arithmetic number, because the mean of its divisors is an integer number (16302).

2¹³⁹⁸⁹⁵ is an apocalyptic number.

139895 is a deficient number, since it is larger than the sum of its proper divisors (55729).

139895 is an equidigital number, since it uses as much as digits as its factorization.

139895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590 (or 583 counting only the distinct ones).

The product of its digits is 9720, while the sum is 35.

The square root of 139895 is about 374.0254002070. The cubic root of 139895 is about 51.9119565366.

The spelling of 139895 in words is "one hundred thirty-nine thousand, eight hundred ninety-five".