1145775042 has 12 divisors (see below), whose sum is σ = 2482512630. Its totient is φ = 381925008.

The previous prime is 1145775019. The next prime is 1145775047. The reversal of 1145775042 is 2405775411.

1145775042 is a `hidden beast` number, since 1 + 145 + 7 + 7 + 504 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1140480441 + 5294601 = 33771^2 + 2301^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1145774988 and 1145775006.

It is not an unprimeable number, because it can be changed into a prime (1145775047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31827067 + ... + 31827102.

Almost surely, 2^1145775042 is an apocalyptic number.

1145775042 is an abundant number, since it is smaller than the sum of its proper divisors (1336737588).

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

1145775042 is a wasteful number, since it uses less digits than its factorization.

1145775042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63654177 (or 63654174 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 1145775042 is about 33849.2989883099. The cubic root of 1145775042 is about 1046.4049513783.

The spelling of 1145775042 in words is "one billion, one hundred forty-five million, seven hundred seventy-five thousand, forty-two".