1144531345 has 8 divisors (see below), whose sum is σ = 1373739840. Its totient is φ = 915423600.

The previous prime is 1144531231. The next prime is 1144531363. The reversal of 1144531345 is 5431354411.

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

It is not a de Polignac number, because 1144531345 - 2⁷ = 1144531217 is a prime.

It is an unprimeable number.

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, 2596 + ... + 47914.

It is an arithmetic number, because the mean of its divisors is an integer number (171717480).

Almost surely, 2^1144531345 is an apocalyptic number.

It is an amenable number.

1144531345 is a deficient number, since it is larger than the sum of its proper divisors (229208495).

1144531345 is an equidigital number, since it uses as much as digits as its factorization.

1144531345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50375.

The product of its digits is 14400, while the sum is 31.

The square root of 1144531345 is about 33830.9229108518. The cubic root of 1144531345 is about 1046.0262028418.

Adding to 1144531345 its reverse (5431354411), we get a palindrome (6575885756).

The spelling of 1144531345 in words is "one billion, one hundred forty-four million, five hundred thirty-one thousand, three hundred forty-five".