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131145127 is a prime number
BaseRepresentation
bin1111101000100…
…01110110100111
3100010202212021221
413310101312213
5232033121002
621002521211
73151500211
oct764216647
9303685257
10131145127
1168034303
1237b06207
1321229a89
14135bb5b1
15b7a7c37
hex7d11da7

131145127 has 2 divisors, whose sum is σ = 131145128. Its totient is φ = 131145126.

The previous prime is 131145121. The next prime is 131145143. The reversal of 131145127 is 721541131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131145127 - 223 = 122756519 is a prime.

It is a super-2 number, since 2×1311451272 = 34398088671692258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131145121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65572563 + 65572564.

It is an arithmetic number, because the mean of its divisors is an integer number (65572564).

Almost surely, 2131145127 is an apocalyptic number.

131145127 is a deficient number, since it is larger than the sum of its proper divisors (1).

131145127 is an equidigital number, since it uses as much as digits as its factorization.

131145127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840, while the sum is 25.

The square root of 131145127 is about 11451.8612897642. The cubic root of 131145127 is about 508.0627867401.

Adding to 131145127 its reverse (721541131), we get a palindrome (852686258).

The spelling of 131145127 in words is "one hundred thirty-one million, one hundred forty-five thousand, one hundred twenty-seven".