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139159 = 31672
BaseRepresentation
bin100001111110010111
321001220001
4201332113
513423114
62552131
71116466
oct417627
9231801
10139159
1195609
1268647
134b457
14389dd
152b374
hex21f97

139159 has 6 divisors (see below), whose sum is σ = 145824. Its totient is φ = 132660.

The previous prime is 139133. The next prime is 139169. The reversal of 139159 is 951931.

It is not a de Polignac number, because 139159 - 29 = 138647 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139109) 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 5 ways as a sum of consecutive naturals, for example, 2044 + ... + 2110.

It is an arithmetic number, because the mean of its divisors is an integer number (24304).

2139159 is an apocalyptic number.

139159 is a deficient number, since it is larger than the sum of its proper divisors (6665).

139159 is an frugal number, since it uses more digits than its factorization.

139159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 98 counting only the distinct ones).

The product of its digits is 1215, while the sum is 28.

The square root of 139159 is about 373.0402123096. The cubic root of 139159 is about 51.8207586135.

It can be divided in two parts, 13915 and 9, that added together give a square (13924 = 1182).

The spelling of 139159 in words is "one hundred thirty-nine thousand, one hundred fifty-nine".

Divisors: 1 31 67 2077 4489 139159