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75127 = 135779
BaseRepresentation
bin10010010101110111
310211001111
4102111313
54401002
61335451
7432013
oct222567
9124044
1075127
1151498
1237587
1328270
141d543
15173d7
hex12577

75127 has 4 divisors (see below), whose sum is σ = 80920. Its totient is φ = 69336.

The previous prime is 75109. The next prime is 75133. The reversal of 75127 is 72157.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72157 = 591223.

It is a cyclic number.

It is not a de Polignac number, because 75127 - 211 = 73079 is a prime.

It is a super-2 number, since 2×751272 = 11288132258, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 8 and base 16.

It is a junction number, because it is equal to n+sod(n) for n = 75098 and 75107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2877 + ... + 2902.

It is an arithmetic number, because the mean of its divisors is an integer number (20230).

275127 is an apocalyptic number.

75127 is a deficient number, since it is larger than the sum of its proper divisors (5793).

75127 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 16 representation: 75127 = (12577)16.

75127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5792.

The product of its digits is 490, while the sum is 22.

The square root of 75127 is about 274.0930498936. The cubic root of 75127 is about 42.1954233860.

It can be divided in two parts, 75 and 127, that added together give a palindrome (202).

The spelling of 75127 in words is "seventy-five thousand, one hundred twenty-seven".

Divisors: 1 13 5779 75127