1131403648 has 32 divisors (see below), whose sum is σ = 2256309360. Its totient is φ = 565114368.

The previous prime is 1131403633. The next prime is 1131403681. The reversal of 1131403648 is 8463041311.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135861 + ... + 143947.

Almost surely, 2^1131403648 is an apocalyptic number.

It is an amenable number.

1131403648 is a deficient number, since it is larger than the sum of its proper divisors (1124905712).

1131403648 is an equidigital number, since it uses as much as digits as its factorization.

1131403648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9194 (or 9182 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1131403648 is about 33636.3441533113. The cubic root of 1131403648 is about 1042.0115309233.

Adding to 1131403648 its reverse (8463041311), we get a palindrome (9594444959).

The spelling of 1131403648 in words is "one billion, one hundred thirty-one million, four hundred three thousand, six hundred forty-eight".