1129856545 has 8 divisors (see below), whose sum is σ = 1359066240. Its totient is φ = 901726320.

The previous prime is 1129856537. The next prime is 1129856569. The reversal of 1129856545 is 5456589211.

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

It is not a de Polignac number, because 1129856545 - 2³ = 1129856537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1129856495 and 1129856504.

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, 267561 + ... + 271750.

It is an arithmetic number, because the mean of its divisors is an integer number (169883280).

Almost surely, 2^1129856545 is an apocalyptic number.

It is an amenable number.

1129856545 is a deficient number, since it is larger than the sum of its proper divisors (229209695).

1129856545 is an equidigital number, since it uses as much as digits as its factorization.

1129856545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539735.

The product of its digits is 432000, while the sum is 46.

The square root of 1129856545 is about 33613.3387957817. The cubic root of 1129856545 is about 1041.5363587682.

The spelling of 1129856545 in words is "one billion, one hundred twenty-nine million, eight hundred fifty-six thousand, five hundred forty-five".