1145245445 has 8 divisors (see below), whose sum is σ = 1406255136. Its totient is φ = 894889296.

The previous prime is 1145245441. The next prime is 1145245483. The reversal of 1145245445 is 5445425411.

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 1145245445 - 2² = 1145245441 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145245441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2663147 + ... + 2663576.

It is an arithmetic number, because the mean of its divisors is an integer number (175781892).

Almost surely, 2^1145245445 is an apocalyptic number.

It is an amenable number.

1145245445 is a deficient number, since it is larger than the sum of its proper divisors (261009691).

1145245445 is an equidigital number, since it uses as much as digits as its factorization.

1145245445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5326771.

The product of its digits is 64000, while the sum is 35.

The square root of 1145245445 is about 33841.4752190267. The cubic root of 1145245445 is about 1046.2437043890.

The spelling of 1145245445 in words is "one billion, one hundred forty-five million, two hundred forty-five thousand, four hundred forty-five".