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127525 = 525101
BaseRepresentation
bin11111001000100101
320110221011
4133020211
513040100
62422221
71040536
oct371045
9213834
10127525
11878a2
1261971
1346078
143468d
1527bba
hex1f225

127525 has 6 divisors (see below), whose sum is σ = 158162. Its totient is φ = 102000.

The previous prime is 127507. The next prime is 127529. The reversal of 127525 is 525721.

It can be written as a sum of positive squares in 3 ways, for example, as 2209 + 125316 = 47^2 + 354^2 .

It is not a de Polignac number, because 127525 - 25 = 127493 is a prime.

It is a Duffinian number.

127525 is a lucky number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 127496 and 127505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2526 + ... + 2575.

2127525 is an apocalyptic number.

It is an amenable number.

127525 is a deficient number, since it is larger than the sum of its proper divisors (30637).

127525 is an equidigital number, since it uses as much as digits as its factorization.

127525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111 (or 5106 counting only the distinct ones).

The product of its digits is 700, while the sum is 22.

The square root of 127525 is about 357.1064267134. The cubic root of 127525 is about 50.3344248797.

The spelling of 127525 in words is "one hundred twenty-seven thousand, five hundred twenty-five".

Divisors: 1 5 25 5101 25505 127525