1131921484 has 12 divisors (see below), whose sum is σ = 1982737008. Its totient is φ = 565425200.

The previous prime is 1131921451. The next prime is 1131921493. The reversal of 1131921484 is 4841291311.

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, 129112 + ... + 137599.

It is an arithmetic number, because the mean of its divisors is an integer number (165228084).

Almost surely, 2^1131921484 is an apocalyptic number.

It is an amenable number.

1131921484 is a deficient number, since it is larger than the sum of its proper divisors (850815524).

1131921484 is a wasteful number, since it uses less digits than its factorization.

1131921484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267776 (or 267774 counting only the distinct ones).

The product of its digits is 6912, while the sum is 34.

The square root of 1131921484 is about 33644.0408393522. The cubic root of 1131921484 is about 1042.1704806146.

The spelling of 1131921484 in words is "one billion, one hundred thirty-one million, nine hundred twenty-one thousand, four hundred eighty-four".