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64054481 is a prime number
BaseRepresentation
bin1111010001011…
…0010011010001
311110112022020012
43310112103101
5112344220411
610204524305
71405311521
oct364262321
9143468205
1064054481
1133180097
1219550695
131036957a
148715681
15595418b
hex3d164d1

64054481 has 2 divisors, whose sum is σ = 64054482. Its totient is φ = 64054480.

The previous prime is 64054451. The next prime is 64054483. The reversal of 64054481 is 18445046.

64054481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61465600 + 2588881 = 7840^2 + 1609^2 .

It is a cyclic number.

It is not a de Polignac number, because 64054481 - 214 = 64038097 is a prime.

It is a super-2 number, since 2×640544812 = 8205953072358722, which contains 22 as substring.

Together with 64054483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64054483) 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, 32027240 + 32027241.

It is an arithmetic number, because the mean of its divisors is an integer number (32027241).

Almost surely, 264054481 is an apocalyptic number.

It is an amenable number.

64054481 is a deficient number, since it is larger than the sum of its proper divisors (1).

64054481 is an equidigital number, since it uses as much as digits as its factorization.

64054481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 64054481 is about 8003.4043381551. The cubic root of 64054481 is about 400.1134698917.

The spelling of 64054481 in words is "sixty-four million, fifty-four thousand, four hundred eighty-one".