1145222430 has 64 divisors (see below), whose sum is σ = 3003042816. Its totient is φ = 277200000.

The previous prime is 1145222411. The next prime is 1145222497. The reversal of 1145222430 is 342225411.

It is a self number, because there is not a number n which added to its sum of digits gives 1145222430.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 245520 + ... + 250140.

It is an arithmetic number, because the mean of its divisors is an integer number (46922544).

Almost surely, 2^1145222430 is an apocalyptic number.

1145222430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145222430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1501521408).

1145222430 is an abundant number, since it is smaller than the sum of its proper divisors (1857820386).

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

1145222430 is a wasteful number, since it uses less digits than its factorization.

1145222430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5393.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1145222430 is about 33841.1351759955. The cubic root of 1145222430 is about 1046.2366958593.

Adding to 1145222430 its reverse (342225411), we get a palindrome (1487447841).

The spelling of 1145222430 in words is "one billion, one hundred forty-five million, two hundred twenty-two thousand, four hundred thirty".