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131147903 is a prime number
BaseRepresentation
bin1111101000100…
…10100001111111
3100010210000002202
413310102201333
5232033213103
621002542115
73151511255
oct764224177
9303700082
10131147903
11680363a7
1237b0793b
132122b113
14135bc5d5
15b7a8988
hex7d1287f

131147903 has 2 divisors, whose sum is σ = 131147904. Its totient is φ = 131147902.

The previous prime is 131147873. The next prime is 131147921. The reversal of 131147903 is 309741131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131147903 - 26 = 131147839 is a prime.

It is a super-2 number, since 2×1311479032 = 34399544922594818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131147923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65573951 + 65573952.

It is an arithmetic number, because the mean of its divisors is an integer number (65573952).

Almost surely, 2131147903 is an apocalyptic number.

131147903 is a deficient number, since it is larger than the sum of its proper divisors (1).

131147903 is an equidigital number, since it uses as much as digits as its factorization.

131147903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 131147903 is about 11451.9824921277. The cubic root of 131147903 is about 508.0663715024.

The spelling of 131147903 in words is "one hundred thirty-one million, one hundred forty-seven thousand, nine hundred three".