1131072650 has 12 divisors (see below), whose sum is σ = 2103795222. Its totient is φ = 452429040.

The previous prime is 1131072643. The next prime is 1131072653. The reversal of 1131072650 is 562701311.

It can be written as a sum of positive squares in 3 ways, for example, as 725171041 + 405901609 = 26929^2 + 20147^2 .

It is not an unprimeable number, because it can be changed into a prime (1131072653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11310677 + ... + 11310776.

Almost surely, 2^1131072650 is an apocalyptic number.

1131072650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131072650 is a deficient number, since it is larger than the sum of its proper divisors (972722572).

1131072650 is a wasteful number, since it uses less digits than its factorization.

1131072650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22621465 (or 22621460 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1131072650 is about 33631.4235500075. The cubic root of 1131072650 is about 1041.9099057214.

Adding to 1131072650 its reverse (562701311), we get a palindrome (1693773961).

The spelling of 1131072650 in words is "one billion, one hundred thirty-one million, seventy-two thousand, six hundred fifty".