1027545641 has 2 divisors, whose sum is σ = 1027545642. Its totient is φ = 1027545640.

The previous prime is 1027545601. The next prime is 1027545709. The reversal of 1027545641 is 1465457201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1024320025 + 3225616 = 32005^2 + 1796^2 .

It is a cyclic number.

It is not a de Polignac number, because 1027545641 - 2²² = 1023351337 is a prime.

It is not a weakly prime, because it can be changed into another prime (1027545601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513772820 + 513772821.

It is an arithmetic number, because the mean of its divisors is an integer number (513772821).

Almost surely, 2^1027545641 is an apocalyptic number.

It is an amenable number.

1027545641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1027545641 is an equidigital number, since it uses as much as digits as its factorization.

1027545641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 1027545641 is about 32055.3527667377. The cubic root of 1027545641 is about 1009.0988403434.

The spelling of 1027545641 in words is "one billion, twenty-seven million, five hundred forty-five thousand, six hundred forty-one".