1135181948 has 18 divisors (see below), whose sum is σ = 2020834536. Its totient is φ = 557963944.

The previous prime is 1135181933. The next prime is 1135181959. The reversal of 1135181948 is 8491815311.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 26840 + ... + 54687.

Almost surely, 2^1135181948 is an apocalyptic number.

It is an amenable number.

1135181948 is a deficient number, since it is larger than the sum of its proper divisors (885652588).

1135181948 is an equidigital number, since it uses as much as digits as its factorization.

1135181948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81649 (or 81588 counting only the distinct ones).

The product of its digits is 34560, while the sum is 41.

The square root of 1135181948 is about 33692.4612932923. The cubic root of 1135181948 is about 1043.1701677311.

The spelling of 1135181948 in words is "one billion, one hundred thirty-five million, one hundred eighty-one thousand, nine hundred forty-eight".