1066045459 has 4 divisors (see below), whose sum is σ = 1066327416. Its totient is φ = 1065763504.

The previous prime is 1066045451. The next prime is 1066045501. The reversal of 1066045459 is 9545406601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9545406601 = 2711 ⋅3520991.

It is a cyclic number.

It is not a de Polignac number, because 1066045459 - 2³ = 1066045451 is a prime.

It is a super-2 number, since 2×1066045459² = 2272905841309041362, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066045451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135229 + ... + 142894.

It is an arithmetic number, because the mean of its divisors is an integer number (266581854).

Almost surely, 2^1066045459 is an apocalyptic number.

1066045459 is a deficient number, since it is larger than the sum of its proper divisors (281957).

1066045459 is an equidigital number, since it uses as much as digits as its factorization.

1066045459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281956.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 1066045459 is about 32650.3515907563. The cubic root of 1066045459 is about 1021.5475224680.

The spelling of 1066045459 in words is "one billion, sixty-six million, forty-five thousand, four hundred fifty-nine".