1121347545 has 8 divisors (see below), whose sum is σ = 1794156096. Its totient is φ = 598052016.

The previous prime is 1121347519. The next prime is 1121347547. The reversal of 1121347545 is 5457431211.

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

It is not a de Polignac number, because 1121347545 - 2⁹ = 1121347033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121347547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37378237 + ... + 37378266.

It is an arithmetic number, because the mean of its divisors is an integer number (224269512).

Almost surely, 2^1121347545 is an apocalyptic number.

1121347545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1121347545 is a deficient number, since it is larger than the sum of its proper divisors (672808551).

1121347545 is an equidigital number, since it uses as much as digits as its factorization.

1121347545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74756511.

The product of its digits is 16800, while the sum is 33.

The square root of 1121347545 is about 33486.5278134357. The cubic root of 1121347545 is about 1038.9151486505.

Adding to 1121347545 its reverse (5457431211), we get a palindrome (6578778756).

The spelling of 1121347545 in words is "one billion, one hundred twenty-one million, three hundred forty-seven thousand, five hundred forty-five".