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131113847 is a prime number
BaseRepresentation
bin1111101000010…
…10001101110111
3100010201021101102
413310022031313
5232031120342
621002120315
73151310054
oct764121567
9303637342
10131113847
1168012857
1237ab009b
1321218777
14135b002b
15b79d832
hex7d0a377

131113847 has 2 divisors, whose sum is σ = 131113848. Its totient is φ = 131113846.

The previous prime is 131113831. The next prime is 131113883. The reversal of 131113847 is 748311131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131113847 - 24 = 131113831 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131113897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65556923 + 65556924.

It is an arithmetic number, because the mean of its divisors is an integer number (65556924).

Almost surely, 2131113847 is an apocalyptic number.

131113847 is a deficient number, since it is larger than the sum of its proper divisors (1).

131113847 is an equidigital number, since it uses as much as digits as its factorization.

131113847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 29.

The square root of 131113847 is about 11450.4954914624. The cubic root of 131113847 is about 508.0223900996.

Adding to 131113847 its reverse (748311131), we get a palindrome (879424978).

The spelling of 131113847 in words is "one hundred thirty-one million, one hundred thirteen thousand, eight hundred forty-seven".