1145393768 has 32 divisors (see below), whose sum is σ = 2275869960. Its totient is φ = 538552320.

The previous prime is 1145393761. The next prime is 1145393771. The reversal of 1145393768 is 8673935411.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1042127524 + 103266244 = 32282^2 + 10162^2 .

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1145393761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200228 + ... + 205868.

Almost surely, 2^1145393768 is an apocalyptic number.

It is an amenable number.

1145393768 is a deficient number, since it is larger than the sum of its proper divisors (1130476192).

1145393768 is a wasteful number, since it uses less digits than its factorization.

1145393768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7157 (or 7153 counting only the distinct ones).

The product of its digits is 544320, while the sum is 47.

The square root of 1145393768 is about 33843.6665862315. Note that the first 3 decimals coincide. The cubic root of 1145393768 is about 1046.2888694690.

The spelling of 1145393768 in words is "one billion, one hundred forty-five million, three hundred ninety-three thousand, seven hundred sixty-eight".