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131667125 = 531761961
BaseRepresentation
bin1111101100100…
…01010010110101
3100011202101100012
413312101102311
5232201322000
621022030005
73156103112
oct766212265
9304671305
10131667125
1168360507
1238118305
1321380555
14136b5909
15b85c735
hex7d914b5

131667125 has 16 divisors (see below), whose sum is σ = 173989296. Its totient is φ = 99136000.

The previous prime is 131667119. The next prime is 131667143. The reversal of 131667125 is 521766131.

It can be written as a sum of positive squares in 8 ways, for example, as 7612081 + 124055044 = 2759^2 + 11138^2 .

It is not a de Polignac number, because 131667125 - 212 = 131663029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131667091 and 131667100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28856 + ... + 33105.

It is an arithmetic number, because the mean of its divisors is an integer number (10874331).

Almost surely, 2131667125 is an apocalyptic number.

It is an amenable number.

131667125 is a deficient number, since it is larger than the sum of its proper divisors (42322171).

131667125 is an equidigital number, since it uses as much as digits as its factorization.

131667125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61993 (or 61983 counting only the distinct ones).

The product of its digits is 7560, while the sum is 32.

The square root of 131667125 is about 11474.6296236523. The cubic root of 131667125 is about 508.7359764882.

The spelling of 131667125 in words is "one hundred thirty-one million, six hundred sixty-seven thousand, one hundred twenty-five".

Divisors: 1 5 17 25 85 125 425 2125 61961 309805 1053337 1549025 5266685 7745125 26333425 131667125