1066813294 has 4 divisors (see below), whose sum is σ = 1600219944. Its totient is φ = 533406646.

The previous prime is 1066813249. The next prime is 1066813327. The reversal of 1066813294 is 4923186601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4923186601 = 31 ⋅158812471.

It is a super-2 number, since 2×1066813294² = 2276181208510260872, 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 congruent number.

It is an unprimeable number.

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, 266703322 + ... + 266703325.

It is an arithmetic number, because the mean of its divisors is an integer number (400054986).

Almost surely, 2^1066813294 is an apocalyptic number.

1066813294 is a deficient number, since it is larger than the sum of its proper divisors (533406650).

1066813294 is an equidigital number, since it uses as much as digits as its factorization.

1066813294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533406649.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 1066813294 is about 32662.1079234026. The cubic root of 1066813294 is about 1021.7927251749.

Adding to 1066813294 its reverse (4923186601), we get a palindrome (5989999895).

The spelling of 1066813294 in words is "one billion, sixty-six million, eight hundred thirteen thousand, two hundred ninety-four".