1126601605 has 8 divisors (see below), whose sum is σ = 1367112600. Its totient is φ = 891154176.

The previous prime is 1126601573. The next prime is 1126601621. The reversal of 1126601605 is 5061066211.

1126601605 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 64754209 + 1061847396 = 8047^2 + 32586^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1126601605 - 2⁵ = 1126601573 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1265400 + ... + 1266289.

It is an arithmetic number, because the mean of its divisors is an integer number (170889075).

Almost surely, 2^1126601605 is an apocalyptic number.

It is an amenable number.

1126601605 is a deficient number, since it is larger than the sum of its proper divisors (240510995).

1126601605 is an equidigital number, since it uses as much as digits as its factorization.

1126601605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2531783.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1126601605 is about 33564.8864887102. The cubic root of 1126601605 is about 1040.5352290003.

Adding to 1126601605 its reverse (5061066211), we get a palindrome (6187667816).

The spelling of 1126601605 in words is "one billion, one hundred twenty-six million, six hundred one thousand, six hundred five".