1131630650 has 12 divisors (see below), whose sum is σ = 2104833102. Its totient is φ = 452652240.

The previous prime is 1131630649. The next prime is 1131630673. The reversal of 1131630650 is 560361311.

It can be written as a sum of positive squares in 3 ways, for example, as 439782841 + 691847809 = 20971^2 + 26303^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11316257 + ... + 11316356.

Almost surely, 2^1131630650 is an apocalyptic number.

1131630650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131630650 is a deficient number, since it is larger than the sum of its proper divisors (973202452).

1131630650 is a wasteful number, since it uses less digits than its factorization.

1131630650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22632625 (or 22632620 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 1131630650 is about 33639.7183400813. The cubic root of 1131630650 is about 1042.0812151262.

Adding to 1131630650 its reverse (560361311), we get a palindrome (1691991961).

The spelling of 1131630650 in words is "one billion, one hundred thirty-one million, six hundred thirty thousand, six hundred fifty".