1145745777 has 8 divisors (see below), whose sum is σ = 1666539360. Its totient is φ = 694391360.

The previous prime is 1145745749. The next prime is 1145745829. The reversal of 1145745777 is 7775475411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1145745777 - 2⁸ = 1145745521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1145745977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17359752 + ... + 17359817.

It is an arithmetic number, because the mean of its divisors is an integer number (208317420).

Almost surely, 2^1145745777 is an apocalyptic number.

It is an amenable number.

1145745777 is a deficient number, since it is larger than the sum of its proper divisors (520793583).

1145745777 is a wasteful number, since it uses less digits than its factorization.

1145745777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34719583.

The product of its digits is 960400, while the sum is 48.

The square root of 1145745777 is about 33848.8667018558. The cubic root of 1145745777 is about 1046.3960423283.

The spelling of 1145745777 in words is "one billion, one hundred forty-five million, seven hundred forty-five thousand, seven hundred seventy-seven".