1145777256 has 48 divisors (see below), whose sum is σ = 3341853060. Its totient is φ = 352546560.

The previous prime is 1145777249. The next prime is 1145777257. The reversal of 1145777256 is 6527775411.

1145777256 is a `hidden beast` number, since 1 + 1 + 4 + 577 + 72 + 5 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 932325156 + 213452100 = 30534^2 + 14610^2 .

It is not an unprimeable number, because it can be changed into a prime (1145777257) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 611125 + ... + 612996.

Almost surely, 2^1145777256 is an apocalyptic number.

It is an amenable number.

1145777256 is an abundant number, since it is smaller than the sum of its proper divisors (2196075804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145777256 is a wasteful number, since it uses less digits than its factorization.

1145777256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224146 (or 1224139 counting only the distinct ones).

The product of its digits is 411600, while the sum is 45.

The square root of 1145777256 is about 33849.3316920733. The cubic root of 1145777256 is about 1046.4056253731.

The spelling of 1145777256 in words is "one billion, one hundred forty-five million, seven hundred seventy-seven thousand, two hundred fifty-six".