139095 has 24 divisors (see below), whose sum is σ = 263952. Its totient is φ = 67200.

The previous prime is 139091. The next prime is 139109. The reversal of 139095 is 590931.

It is not a de Polignac number, because 139095 - 2² = 139091 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 355 + ... + 635.

It is an arithmetic number, because the mean of its divisors is an integer number (10998).

139095 is a Friedman number, since it can be written as 3091*9*5, using all its digits and the basic arithmetic operations.

2¹³⁹⁰⁹⁵ is an apocalyptic number.

139095 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

139095 is a deficient number, since it is larger than the sum of its proper divisors (124857).

139095 is a wasteful number, since it uses less digits than its factorization.

139095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 27.

The square root of 139095 is about 372.9544208077. The cubic root of 139095 is about 51.8128131767.

It can be divided in two parts, 1390 and 95, that added together give a triangular number (1485 = T₅₄).

The spelling of 139095 in words is "one hundred thirty-nine thousand, ninety-five".