1145421124 has 12 divisors (see below), whose sum is σ = 2005323264. Its totient is φ = 572471624.

The previous prime is 1145421119. The next prime is 1145421127. The reversal of 1145421124 is 4211245411.

It is not an unprimeable number, because it can be changed into a prime (1145421127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48724 + ... + 68299.

It is an arithmetic number, because the mean of its divisors is an integer number (167110272).

Almost surely, 2^1145421124 is an apocalyptic number.

It is an amenable number.

1145421124 is a deficient number, since it is larger than the sum of its proper divisors (859902140).

1145421124 is a wasteful number, since it uses less digits than its factorization.

1145421124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119474 (or 119472 counting only the distinct ones).

The product of its digits is 1280, while the sum is 25.

The square root of 1145421124 is about 33844.0707362457. The cubic root of 1145421124 is about 1046.2971990790.

Adding to 1145421124 its reverse (4211245411), we get a palindrome (5356666535).

The spelling of 1145421124 in words is "one billion, one hundred forty-five million, four hundred twenty-one thousand, one hundred twenty-four".