1011133764 has 18 divisors (see below), whose sum is σ = 2555921550. Its totient is φ = 337044576.

The previous prime is 1011133763. The next prime is 1011133793. The reversal of 1011133764 is 4673311101.

It can be written as a sum of positive squares in only one way, i.e., 900000000 + 111133764 = 30000^2 + 10542^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (1011133763) 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 5 ways as a sum of consecutive naturals, for example, 14043489 + ... + 14043560.

Almost surely, 2^1011133764 is an apocalyptic number.

It is an amenable number.

1011133764 is an abundant number, since it is smaller than the sum of its proper divisors (1544787786).

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

1011133764 is a wasteful number, since it uses less digits than its factorization.

1011133764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28087059 (or 28087054 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 1011133764 is about 31798.3295787688. The cubic root of 1011133764 is about 1003.6975658226.

Adding to 1011133764 its reverse (4673311101), we get a palindrome (5684444865).

The spelling of 1011133764 in words is "one billion, eleven million, one hundred thirty-three thousand, seven hundred sixty-four".