1131694512 has 40 divisors (see below), whose sum is σ = 3148433904. Its totient is φ = 348213504.

The previous prime is 1131694483. The next prime is 1131694519. The reversal of 1131694512 is 2154961311.

It is not an unprimeable number, because it can be changed into a prime (1131694519) 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 7 ways as a sum of consecutive naturals, for example, 906183 + ... + 907430.

Almost surely, 2^1131694512 is an apocalyptic number.

1131694512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1131694512 is an abundant number, since it is smaller than the sum of its proper divisors (2016739392).

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

1131694512 is a wasteful number, since it uses less digits than its factorization.

1131694512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813637 (or 1813631 counting only the distinct ones).

The product of its digits is 6480, while the sum is 33.

The square root of 1131694512 is about 33640.6675320214. The cubic root of 1131694512 is about 1042.1008175582.

The spelling of 1131694512 in words is "one billion, one hundred thirty-one million, six hundred ninety-four thousand, five hundred twelve".