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131520127 is a prime number
BaseRepresentation
bin1111101011011…
…01011001111111
3100011110220200211
413311231121333
5232132121002
621014533251
73154621414
oct765553177
9304426624
10131520127
1168270022
1238067227
132132b67b
141367810b
15b82ddd7
hex7d6d67f

131520127 has 2 divisors, whose sum is σ = 131520128. Its totient is φ = 131520126.

The previous prime is 131520121. The next prime is 131520149. The reversal of 131520127 is 721025131.

It is a happy number.

It is an a-pointer prime, because the next prime (131520149) can be obtained adding 131520127 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131520127 is a prime.

It is a super-2 number, since 2×1315201272 = 34595087612192258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131520098 and 131520107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131520121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65760063 + 65760064.

It is an arithmetic number, because the mean of its divisors is an integer number (65760064).

Almost surely, 2131520127 is an apocalyptic number.

131520127 is a deficient number, since it is larger than the sum of its proper divisors (1).

131520127 is an equidigital number, since it uses as much as digits as its factorization.

131520127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 131520127 is about 11468.2224865059. Note that the first 3 decimals coincide. The cubic root of 131520127 is about 508.5465821638.

Adding to 131520127 its reverse (721025131), we get a palindrome (852545258).

The spelling of 131520127 in words is "one hundred thirty-one million, five hundred twenty thousand, one hundred twenty-seven".