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1064401081 is a prime number
BaseRepresentation
bin111111011100010…
…111100010111001
32202011212011210021
4333130113202321
54134441313311
6253341450441
735243155102
oct7734274271
92664764707
101064401081
114a6910317
12258570a21
1313c698433
14a15133a9
15636a3171
hex3f7178b9

1064401081 has 2 divisors, whose sum is σ = 1064401082. Its totient is φ = 1064401080.

The previous prime is 1064401043. The next prime is 1064401103. The reversal of 1064401081 is 1801044601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 654541056 + 409860025 = 25584^2 + 20245^2 .

It is a cyclic number.

It is not a de Polignac number, because 1064401081 - 29 = 1064400569 is a prime.

It is a super-2 number, since 2×10644010812 = 2265899322467937122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1064407081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532200540 + 532200541.

It is an arithmetic number, because the mean of its divisors is an integer number (532200541).

Almost surely, 21064401081 is an apocalyptic number.

It is an amenable number.

1064401081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1064401081 is an equidigital number, since it uses as much as digits as its factorization.

1064401081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 1064401081 is about 32625.1602448172. The cubic root of 1064401081 is about 1021.0220055673.

Adding to 1064401081 its reverse (1801044601), we get a palindrome (2865445682).

The spelling of 1064401081 in words is "one billion, sixty-four million, four hundred one thousand, eighty-one".