1145605066 has 4 divisors (see below), whose sum is σ = 1718407602. Its totient is φ = 572802532.

The previous prime is 1145605051. The next prime is 1145605073. The reversal of 1145605066 is 6605065411.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 828230841 + 317374225 = 28779^2 + 17815^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286401265 + ... + 286401268.

Almost surely, 2^1145605066 is an apocalyptic number.

1145605066 is a deficient number, since it is larger than the sum of its proper divisors (572802536).

1145605066 is an equidigital number, since it uses as much as digits as its factorization.

1145605066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572802535.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 1145605066 is about 33846.7881194065. The cubic root of 1145605066 is about 1046.3532040115.

The spelling of 1145605066 in words is "one billion, one hundred forty-five million, six hundred five thousand, sixty-six".