1135581248 has 28 divisors (see below), whose sum is σ = 2259261420. Its totient is φ = 566318592.

The previous prime is 1135581247. The next prime is 1135581253. The reversal of 1135581248 is 8421855311.

It can be written as a sum of positive squares in 2 ways, for example, as 123832384 + 1011748864 = 11128^2 + 31808^2 .

It is not an unprimeable number, because it can be changed into a prime (1135581247) 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 3 ways as a sum of consecutive naturals, for example, 2090 + ... + 47702.

Almost surely, 2^1135581248 is an apocalyptic number.

It is an amenable number.

1135581248 is a deficient number, since it is larger than the sum of its proper divisors (1123680172).

1135581248 is an equidigital number, since it uses as much as digits as its factorization.

1135581248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46014 (or 46004 counting only the distinct ones).

The product of its digits is 38400, while the sum is 38.

The square root of 1135581248 is about 33698.3864302135. The cubic root of 1135581248 is about 1043.2924650184.

The spelling of 1135581248 in words is "one billion, one hundred thirty-five million, five hundred eighty-one thousand, two hundred forty-eight".