1126650605 has 18 divisors (see below), whose sum is σ = 1437815466. Its totient is φ = 847340928.

The previous prime is 1126650601. The next prime is 1126650641. The reversal of 1126650605 is 5060566211.

It can be written as a sum of positive squares in 3 ways, for example, as 377369476 + 749281129 = 19426^2 + 27373^2 .

It is not a de Polignac number, because 1126650605 - 2² = 1126650601 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1126650601) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1275494 + ... + 1276376.

It is an arithmetic number, because the mean of its divisors is an integer number (79878637).

Almost surely, 2^1126650605 is an apocalyptic number.

It is an amenable number.

1126650605 is a deficient number, since it is larger than the sum of its proper divisors (311164861).

1126650605 is an frugal number, since it uses more digits than its factorization.

1126650605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805 (or 905 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 1126650605 is about 33565.6164102493. The cubic root of 1126650605 is about 1040.5503143350.

The spelling of 1126650605 in words is "one billion, one hundred twenty-six million, six hundred fifty thousand, six hundred five".