1066634243 has 4 divisors (see below), whose sum is σ = 1067044440. Its totient is φ = 1066224048.

The previous prime is 1066634237. The next prime is 1066634249. The reversal of 1066634243 is 3424366601.

1066634243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1066634237) and next prime (1066634249).

It is a cyclic number.

It is not a de Polignac number, because 1066634243 - 2⁸ = 1066633987 is a prime.

It is a super-2 number, since 2×1066634243² = 2275417216680366098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066634249) 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, 201173 + ... + 206406.

It is an arithmetic number, because the mean of its divisors is an integer number (266761110).

Almost surely, 2^1066634243 is an apocalyptic number.

1066634243 is a deficient number, since it is larger than the sum of its proper divisors (410197).

1066634243 is an equidigital number, since it uses as much as digits as its factorization.

1066634243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410196.

The product of its (nonzero) digits is 62208, while the sum is 35.

The square root of 1066634243 is about 32659.3668493435. The cubic root of 1066634243 is about 1021.7355570192.

The spelling of 1066634243 in words is "one billion, sixty-six million, six hundred thirty-four thousand, two hundred forty-three".