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131137914191 is a prime number
BaseRepresentation
bin111101000100001101…
…1011100010101001111
3110112111020010021102212
41322020123130111033
54122032301223231
6140124404341035
712321501610304
oct1721033342517
9415436107385
10131137914191
1150684a2a989
12214b99a477b
13c49b86b83b
1464c06770ab
153627bd842b
hex1e886dc54f

131137914191 has 2 divisors, whose sum is σ = 131137914192. Its totient is φ = 131137914190.

The previous prime is 131137914169. The next prime is 131137914197. The reversal of 131137914191 is 191419731131.

It is a strong prime.

It is an emirp because it is prime and its reverse (191419731131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131137914191 - 218 = 131137652047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131137914197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65568957095 + 65568957096.

It is an arithmetic number, because the mean of its divisors is an integer number (65568957096).

Almost surely, 2131137914191 is an apocalyptic number.

131137914191 is a deficient number, since it is larger than the sum of its proper divisors (1).

131137914191 is an equidigital number, since it uses as much as digits as its factorization.

131137914191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 41.

The spelling of 131137914191 in words is "one hundred thirty-one billion, one hundred thirty-seven million, nine hundred fourteen thousand, one hundred ninety-one".