1244121425 has 48 divisors (see below), whose sum is σ = 1677184320. Its totient is φ = 912384000.

The previous prime is 1244121383. The next prime is 1244121479. The reversal of 1244121425 is 5241214421.

It is not a de Polignac number, because 1244121425 - 2¹⁴ = 1244105041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1244121394 and 1244121403.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3758510 + ... + 3758840.

It is an arithmetic number, because the mean of its divisors is an integer number (34941340).

Almost surely, 2^1244121425 is an apocalyptic number.

It is an amenable number.

1244121425 is a deficient number, since it is larger than the sum of its proper divisors (433062895).

1244121425 is a wasteful number, since it uses less digits than its factorization.

1244121425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594 (or 589 counting only the distinct ones).

The product of its digits is 2560, while the sum is 26.

The square root of 1244121425 is about 35272.1054801099. The cubic root of 1244121425 is about 1075.5260234346.

Adding to 1244121425 its reverse (5241214421), we get a palindrome (6485335846).

The spelling of 1244121425 in words is "one billion, two hundred forty-four million, one hundred twenty-one thousand, four hundred twenty-five".