1145775412 has 24 divisors (see below), whose sum is σ = 2044697256. Its totient is φ = 561595008.

The previous prime is 1145775391. The next prime is 1145775427. The reversal of 1145775412 is 2145775411.

It can be written as a sum of positive squares in 4 ways, for example, as 57699216 + 1088076196 = 7596^2 + 32986^2 .

It is a super-3 number, since 3×1145775412³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484938 + ... + 487294.

It is an arithmetic number, because the mean of its divisors is an integer number (85195719).

Almost surely, 2^1145775412 is an apocalyptic number.

It is an amenable number.

1145775412 is a deficient number, since it is larger than the sum of its proper divisors (898921844).

1145775412 is a wasteful number, since it uses less digits than its factorization.

1145775412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4707 (or 4705 counting only the distinct ones).

The product of its digits is 39200, while the sum is 37.

The square root of 1145775412 is about 33849.3044537107. The cubic root of 1145775412 is about 1046.4050640153.

Subtracting 1145775412 from its reverse (2145775411), we obtain a palindrome (999999999).

The spelling of 1145775412 in words is "one billion, one hundred forty-five million, seven hundred seventy-five thousand, four hundred twelve".