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130122541 is a prime number
BaseRepresentation
bin1111100000110…
…00001100101101
3100001211220120101
413300120030231
5231302410131
620524551101
73140011003
oct760301455
9301756511
10130122541
11674a5a9a
12376b2491
1320c5c4b3
14133d2a73
15b654c61
hex7c1832d

130122541 has 2 divisors, whose sum is σ = 130122542. Its totient is φ = 130122540.

The previous prime is 130122527. The next prime is 130122581. The reversal of 130122541 is 145221031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74321641 + 55800900 = 8621^2 + 7470^2 .

It is an emirp because it is prime and its reverse (145221031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130122541 - 27 = 130122413 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 (130122511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65061270 + 65061271.

It is an arithmetic number, because the mean of its divisors is an integer number (65061271).

Almost surely, 2130122541 is an apocalyptic number.

It is an amenable number.

130122541 is a deficient number, since it is larger than the sum of its proper divisors (1).

130122541 is an equidigital number, since it uses as much as digits as its factorization.

130122541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 130122541 is about 11407.1267635632. The cubic root of 130122541 is about 506.7388231625.

Adding to 130122541 its reverse (145221031), we get a palindrome (275343572).

The spelling of 130122541 in words is "one hundred thirty million, one hundred twenty-two thousand, five hundred forty-one".