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126130253 is a prime number
BaseRepresentation
bin1111000010010…
…01100001001101
322210100002011212
413201021201031
5224242132003
620303224205
73061042454
oct741114115
9283302155
10126130253
1165219587
12362a8065
13201922b2
1412a73b9b
15b116dd8
hex784984d

126130253 has 2 divisors, whose sum is σ = 126130254. Its totient is φ = 126130252.

The previous prime is 126130243. The next prime is 126130273. The reversal of 126130253 is 352031621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114854089 + 11276164 = 10717^2 + 3358^2 .

It is a cyclic number.

It is not a de Polignac number, because 126130253 - 210 = 126129229 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 (126130243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63065126 + 63065127.

It is an arithmetic number, because the mean of its divisors is an integer number (63065127).

Almost surely, 2126130253 is an apocalyptic number.

It is an amenable number.

126130253 is a deficient number, since it is larger than the sum of its proper divisors (1).

126130253 is an equidigital number, since it uses as much as digits as its factorization.

126130253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 126130253 is about 11230.7725914115. The cubic root of 126130253 is about 501.5024845579.

Adding to 126130253 its reverse (352031621), we get a palindrome (478161874).

The spelling of 126130253 in words is "one hundred twenty-six million, one hundred thirty thousand, two hundred fifty-three".