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126884081 is a prime number
BaseRepresentation
bin1111001000000…
…01100011110001
322211202101020102
413210001203301
5224440242311
620331322145
73100332302
oct744014361
9284671212
10126884081
1165693985
12365b0355
132039744c
1412bcc7a9
15b21543b
hex79018f1

126884081 has 2 divisors, whose sum is σ = 126884082. Its totient is φ = 126884080.

The previous prime is 126884059. The next prime is 126884089. The reversal of 126884081 is 180488621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88642225 + 38241856 = 9415^2 + 6184^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-126884081 is a prime.

It is a super-2 number, since 2×1268840812 = 32199140022429122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (126884089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63442040 + 63442041.

It is an arithmetic number, because the mean of its divisors is an integer number (63442041).

Almost surely, 2126884081 is an apocalyptic number.

It is an amenable number.

126884081 is a deficient number, since it is larger than the sum of its proper divisors (1).

126884081 is an equidigital number, since it uses as much as digits as its factorization.

126884081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24576, while the sum is 38.

The square root of 126884081 is about 11264.2834215053. The cubic root of 126884081 is about 502.4995912639.

The spelling of 126884081 in words is "one hundred twenty-six million, eight hundred eighty-four thousand, eighty-one".