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130454858581 is a prime number
BaseRepresentation
bin111100101111110110…
…1110010101101010101
3110110201121211110021221
41321133231302231111
54114132420433311
6135532524210341
712265536000445
oct1713755625525
9413647743257
10130454858581
1150364404113
12213490999b1
13c3c01b2b18
146457a70125
1535d7c61671
hex1e5fb72b55

130454858581 has 2 divisors, whose sum is σ = 130454858582. Its totient is φ = 130454858580.

The previous prime is 130454858557. The next prime is 130454858617. The reversal of 130454858581 is 185858454031.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113764544100 + 16690314481 = 337290^2 + 129191^2 .

It is a cyclic number.

It is not a de Polignac number, because 130454858581 - 231 = 128307374933 is a prime.

It is a super-2 number, since 2×1304548585812 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130454858881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65227429290 + 65227429291.

It is an arithmetic number, because the mean of its divisors is an integer number (65227429291).

Almost surely, 2130454858581 is an apocalyptic number.

It is an amenable number.

130454858581 is a deficient number, since it is larger than the sum of its proper divisors (1).

130454858581 is an equidigital number, since it uses as much as digits as its factorization.

130454858581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072000, while the sum is 52.

The spelling of 130454858581 in words is "one hundred thirty billion, four hundred fifty-four million, eight hundred fifty-eight thousand, five hundred eighty-one".