1129616605 has 16 divisors (see below), whose sum is σ = 1483748784. Its totient is φ = 820500480.

The previous prime is 1129616567. The next prime is 1129616627. The reversal of 1129616605 is 5066169211.

It can be written as a sum of positive squares in 8 ways, for example, as 167003929 + 962612676 = 12923^2 + 31026^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1129616605 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138484 + ... + 146413.

It is an arithmetic number, because the mean of its divisors is an integer number (92734299).

Almost surely, 2^1129616605 is an apocalyptic number.

It is an amenable number.

1129616605 is a deficient number, since it is larger than the sum of its proper divisors (354132179).

1129616605 is a wasteful number, since it uses less digits than its factorization.

1129616605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284976.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 1129616605 is about 33609.7694874571. The cubic root of 1129616605 is about 1041.4626255356.

The spelling of 1129616605 in words is "one billion, one hundred twenty-nine million, six hundred sixteen thousand, six hundred five".