1129360621 has 16 divisors (see below), whose sum is σ = 1175529600. Its totient is φ = 1084216320.

The previous prime is 1129360619. The next prime is 1129360633. The reversal of 1129360621 is 1260639211.

It is a cyclic number.

It is not a de Polignac number, because 1129360621 - 2¹ = 1129360619 is a prime.

It is a Duffinian number.

1129360621 is a Rhonda number in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129360681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 790710 + ... + 792136.

It is an arithmetic number, because the mean of its divisors is an integer number (73470600).

Almost surely, 2^1129360621 is an apocalyptic number.

It is an amenable number.

1129360621 is a deficient number, since it is larger than the sum of its proper divisors (46168979).

1129360621 is a wasteful number, since it uses less digits than its factorization.

1129360621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1764.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 1129360621 is about 33605.9610932346. The cubic root of 1129360621 is about 1041.3839504913.

Adding to 1129360621 its reverse (1260639211), we get a palindrome (2389999832).

The spelling of 1129360621 in words is "one billion, one hundred twenty-nine million, three hundred sixty thousand, six hundred twenty-one".