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131888763157 is a prime number
BaseRepresentation
bin111101011010100101…
…1101101000100010101
3110121102112222100120211
41322311023231010111
54130102010410112
6140331105525421
712346216663324
oct1726513550425
9417375870524
10131888763157
1150a2a84a918
1221689343871
13c58b2a2878
14655228a0bb
15366daa20a7
hex1eb52ed115

131888763157 has 2 divisors, whose sum is σ = 131888763158. Its totient is φ = 131888763156.

The previous prime is 131888763151. The next prime is 131888763203. The reversal of 131888763157 is 751367888131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95761778116 + 36126985041 = 309454^2 + 190071^2 .

It is a cyclic number.

It is not a de Polignac number, because 131888763157 - 219 = 131888238869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131888763151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65944381578 + 65944381579.

It is an arithmetic number, because the mean of its divisors is an integer number (65944381579).

Almost surely, 2131888763157 is an apocalyptic number.

It is an amenable number.

131888763157 is a deficient number, since it is larger than the sum of its proper divisors (1).

131888763157 is an equidigital number, since it uses as much as digits as its factorization.

131888763157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6773760, while the sum is 58.

The spelling of 131888763157 in words is "one hundred thirty-one billion, eight hundred eighty-eight million, seven hundred sixty-three thousand, one hundred fifty-seven".