1145451144 has 32 divisors (see below), whose sum is σ = 2864535840. Its totient is φ = 381696000.

The previous prime is 1145451127. The next prime is 1145451149. The reversal of 1145451144 is 4411545411.

It is not an unprimeable number, because it can be changed into a prime (1145451149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102219 + ... + 112869.

It is an arithmetic number, because the mean of its divisors is an integer number (89516745).

Almost surely, 2^1145451144 is an apocalyptic number.

It is an amenable number.

1145451144 is an abundant number, since it is smaller than the sum of its proper divisors (1719084696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145451144 is a wasteful number, since it uses less digits than its factorization.

1145451144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15141 (or 15137 counting only the distinct ones).

The product of its digits is 6400, while the sum is 30.

The square root of 1145451144 is about 33844.5142379086. The cubic root of 1145451144 is about 1046.3063396961.

Adding to 1145451144 its reverse (4411545411), we get a palindrome (5556996555).

The spelling of 1145451144 in words is "one billion, one hundred forty-five million, four hundred fifty-one thousand, one hundred forty-four".