1131646372 has 6 divisors (see below), whose sum is σ = 1980381158. Its totient is φ = 565823184.

The previous prime is 1131646367. The next prime is 1131646387. The reversal of 1131646372 is 2736461311.

It can be written as a sum of positive squares in only one way, i.e., 715241536 + 416404836 = 26744^2 + 20406^2 .

It is a super-2 number, since 2×1131646372² = 2561247022521524768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141455793 + ... + 141455800.

Almost surely, 2^1131646372 is an apocalyptic number.

It is an amenable number.

1131646372 is a deficient number, since it is larger than the sum of its proper divisors (848734786).

1131646372 is a wasteful number, since it uses less digits than its factorization.

1131646372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282911597 (or 282911595 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The square root of 1131646372 is about 33639.9520213689. The cubic root of 1131646372 is about 1042.0860410603.

The spelling of 1131646372 in words is "one billion, one hundred thirty-one million, six hundred forty-six thousand, three hundred seventy-two".