1129569445 has 8 divisors (see below), whose sum is σ = 1414417536. Its totient is φ = 864366096.

The previous prime is 1129569439. The next prime is 1129569449. The reversal of 1129569445 is 5449659211.

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 1129569445 - 2¹³ = 1129561253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1129569395 and 1129569404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129569449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4911057 + ... + 4911286.

It is an arithmetic number, because the mean of its divisors is an integer number (176802192).

Almost surely, 2^1129569445 is an apocalyptic number.

It is an amenable number.

1129569445 is a deficient number, since it is larger than the sum of its proper divisors (284848091).

1129569445 is an equidigital number, since it uses as much as digits as its factorization.

1129569445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9822371.

The product of its digits is 388800, while the sum is 46.

The square root of 1129569445 is about 33609.0678984110. The cubic root of 1129569445 is about 1041.4481321046.

The spelling of 1129569445 in words is "one billion, one hundred twenty-nine million, five hundred sixty-nine thousand, four hundred forty-five".