1066042361 has 2 divisors, whose sum is σ = 1066042362. Its totient is φ = 1066042360.

The previous prime is 1066042321. The next prime is 1066042363. The reversal of 1066042361 is 1632406601.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 672416761 + 393625600 = 25931^2 + 19840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1066042361 is a prime.

It is a super-2 number, since 2×1066042361² = 2272892630892908642, which contains 22 as substring.

Together with 1066042363, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1066042363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533021180 + 533021181.

It is an arithmetic number, because the mean of its divisors is an integer number (533021181).

Almost surely, 2^1066042361 is an apocalyptic number.

It is an amenable number.

1066042361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066042361 is an equidigital number, since it uses as much as digits as its factorization.

1066042361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1066042361 is about 32650.3041486599. The cubic root of 1066042361 is about 1021.5465329050.

Adding to 1066042361 its reverse (1632406601), we get a palindrome (2698448962).

The spelling of 1066042361 in words is "one billion, sixty-six million, forty-two thousand, three hundred sixty-one".