1066254619 has 2 divisors, whose sum is σ = 1066254620. Its totient is φ = 1066254618.

The previous prime is 1066254587. The next prime is 1066254659. The reversal of 1066254619 is 9164526601.

It is a happy number.

It is an a-pointer prime, because the next prime (1066254659) can be obtained adding 1066254619 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1066254619 - 2⁵ = 1066254587 is a prime.

It is a super-2 number, since 2×1066254619² = 2273797825077670322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1066254659) 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, 533127309 + 533127310.

It is an arithmetic number, because the mean of its divisors is an integer number (533127310).

Almost surely, 2^1066254619 is an apocalyptic number.

1066254619 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066254619 is an equidigital number, since it uses as much as digits as its factorization.

1066254619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 1066254619 is about 32653.5544619571. The cubic root of 1066254619 is about 1021.6143279078.

The spelling of 1066254619 in words is "one billion, sixty-six million, two hundred fifty-four thousand, six hundred nineteen".