1131645364 has 6 divisors (see below), whose sum is σ = 1980379394. Its totient is φ = 565822680.

The previous prime is 1131645353. The next prime is 1131645373. The reversal of 1131645364 is 4635461311.

It can be written as a sum of positive squares in only one way, i.e., 1130304400 + 1340964 = 33620^2 + 1158^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141455667 + ... + 141455674.

Almost surely, 2^1131645364 is an apocalyptic number.

It is an amenable number.

1131645364 is a deficient number, since it is larger than the sum of its proper divisors (848734030).

1131645364 is a wasteful number, since it uses less digits than its factorization.

1131645364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282911345 (or 282911343 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 1131645364 is about 33639.9370391801. The cubic root of 1131645364 is about 1042.0857316518.

The spelling of 1131645364 in words is "one billion, one hundred thirty-one million, six hundred forty-five thousand, three hundred sixty-four".