1230002144 has 24 divisors (see below), whose sum is σ = 2767505328. Its totient is φ = 527143680.

The previous prime is 1230002141. The next prime is 1230002167. The reversal of 1230002144 is 4412000321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230002141) 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, 2745317 + ... + 2745764.

It is an arithmetic number, because the mean of its divisors is an integer number (115312722).

Almost surely, 2^1230002144 is an apocalyptic number.

1230002144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1230002144 is an abundant number, since it is smaller than the sum of its proper divisors (1537503184).

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

1230002144 is an equidigital number, since it uses as much as digits as its factorization.

1230002144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5491098 (or 5491090 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1230002144 is about 35071.3863997419. The cubic root of 1230002144 is about 1071.4418922297.

Adding to 1230002144 its reverse (4412000321), we get a palindrome (5642002465).

The spelling of 1230002144 in words is "one billion, two hundred thirty million, two thousand, one hundred forty-four".