1121450045 has 8 divisors (see below), whose sum is σ = 1349201880. Its totient is φ = 894852160.

The previous prime is 1121450021. The next prime is 1121450059. The reversal of 1121450045 is 5400541211.

It can be written as a sum of positive squares in 4 ways, for example, as 95785369 + 1025664676 = 9787^2 + 32026^2 .

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

It is not a de Polignac number, because 1121450045 - 2²⁶ = 1054341181 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1121450045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286346 + ... + 290235.

It is an arithmetic number, because the mean of its divisors is an integer number (168650235).

Almost surely, 2^1121450045 is an apocalyptic number.

It is an amenable number.

1121450045 is a deficient number, since it is larger than the sum of its proper divisors (227751835).

1121450045 is an equidigital number, since it uses as much as digits as its factorization.

1121450045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576975.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1121450045 is about 33488.0582446937. The cubic root of 1121450045 is about 1038.9468026959.

Adding to 1121450045 its reverse (5400541211), we get a palindrome (6521991256).

The spelling of 1121450045 in words is "one billion, one hundred twenty-one million, four hundred fifty thousand, forty-five".