1244002125 has 64 divisors (see below), whose sum is σ = 2172119040. Its totient is φ = 631411200.

The previous prime is 1244002121. The next prime is 1244002141. The reversal of 1244002125 is 5212004421.

It is not a de Polignac number, because 1244002125 - 2² = 1244002121 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244002121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 793092 + ... + 794658.

It is an arithmetic number, because the mean of its divisors is an integer number (33939360).

Almost surely, 2^1244002125 is an apocalyptic number.

1244002125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1244002125 is a deficient number, since it is larger than the sum of its proper divisors (928116915).

1244002125 is a wasteful number, since it uses less digits than its factorization.

1244002125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687 (or 1677 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1244002125 is about 35270.4143015077. The cubic root of 1244002125 is about 1075.4916445941.

Adding to 1244002125 its reverse (5212004421), we get a palindrome (6456006546).

The spelling of 1244002125 in words is "one billion, two hundred forty-four million, two thousand, one hundred twenty-five".