1244115625 has 12 divisors (see below), whose sum is σ = 1555048908. Its totient is φ = 995290000.

The previous prime is 1244115617. The next prime is 1244115637. The reversal of 1244115625 is 5265114421.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 730458729 + 513656896 = 27027^2 + 22664^2 .

It is not a de Polignac number, because 1244115625 - 2³ = 1244115617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 195934 + ... + 202183.

It is an arithmetic number, because the mean of its divisors is an integer number (129587409).

Almost surely, 2^1244115625 is an apocalyptic number.

It is an amenable number.

1244115625 is a deficient number, since it is larger than the sum of its proper divisors (310933283).

1244115625 is an frugal number, since it uses more digits than its factorization.

1244115625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398142 (or 398122 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The square root of 1244115625 is about 35272.0232620699. The cubic root of 1244115625 is about 1075.5243520917.

The spelling of 1244115625 in words is "one billion, two hundred forty-four million, one hundred fifteen thousand, six hundred twenty-five".