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131332125 = 353350219
BaseRepresentation
bin1111101001111…
…11100000011101
3100011010100210210
413310333200131
5232110112000
621010523033
73153206331
oct764774035
9304110723
10131332125
1168151851
1237b96479
1321293c22
14136297c1
15b7e3350
hex7d3f81d

131332125 has 16 divisors (see below), whose sum is σ = 218537280. Its totient is φ = 70043600.

The previous prime is 131332111. The next prime is 131332133. The reversal of 131332125 is 521233131.

It is not a de Polignac number, because 131332125 - 27 = 131331997 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174735 + ... + 175484.

It is an arithmetic number, because the mean of its divisors is an integer number (13658580).

Almost surely, 2131332125 is an apocalyptic number.

131332125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131332125 is a deficient number, since it is larger than the sum of its proper divisors (87205155).

131332125 is an equidigital number, since it uses as much as digits as its factorization.

131332125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350237 (or 350227 counting only the distinct ones).

The product of its digits is 540, while the sum is 21.

The square root of 131332125 is about 11460.0229057363. The cubic root of 131332125 is about 508.3041519275.

Adding to 131332125 its reverse (521233131), we get a palindrome (652565256).

The spelling of 131332125 in words is "one hundred thirty-one million, three hundred thirty-two thousand, one hundred twenty-five".

Divisors: 1 3 5 15 25 75 125 375 350219 1050657 1751095 5253285 8755475 26266425 43777375 131332125