1064051581 has 2 divisors, whose sum is σ = 1064051582. Its totient is φ = 1064051580.

The previous prime is 1064051579. The next prime is 1064051603. The reversal of 1064051581 is 1851504601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 950735556 + 113316025 = 30834^2 + 10645^2 .

It is a cyclic number.

It is not a de Polignac number, because 1064051581 - 2¹ = 1064051579 is a prime.

It is a super-2 number, since 2×1064051581² = 2264411534057199122, which contains 22 as substring.

Together with 1064051579, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1064051531) 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, 532025790 + 532025791.

It is an arithmetic number, because the mean of its divisors is an integer number (532025791).

Almost surely, 2^1064051581 is an apocalyptic number.

It is an amenable number.

1064051581 is a deficient number, since it is larger than the sum of its proper divisors (1).

1064051581 is an equidigital number, since it uses as much as digits as its factorization.

1064051581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 31.

The square root of 1064051581 is about 32619.8035095247. The cubic root of 1064051581 is about 1020.9102412265.

The spelling of 1064051581 in words is "one billion, sixty-four million, fifty-one thousand, five hundred eighty-one".