1242444325 has 6 divisors (see below), whose sum is σ = 1540630994. Its totient is φ = 993955440.

The previous prime is 1242444311. The next prime is 1242444341. The reversal of 1242444325 is 5234442421.

It can be written as a sum of positive squares in 3 ways, for example, as 271623361 + 970820964 = 16481^2 + 31158^2 .

It is not a de Polignac number, because 1242444325 - 2²⁵ = 1208889893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24848862 + ... + 24848911.

Almost surely, 2^1242444325 is an apocalyptic number.

It is an amenable number.

1242444325 is a deficient number, since it is larger than the sum of its proper divisors (298186669).

1242444325 is an equidigital number, since it uses as much as digits as its factorization.

1242444325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49697783 (or 49697778 counting only the distinct ones).

The product of its digits is 30720, while the sum is 31.

The square root of 1242444325 is about 35248.3237190083. The cubic root of 1242444325 is about 1075.0425294153.

Adding to 1242444325 its reverse (5234442421), we get a palindrome (6476886746).

The spelling of 1242444325 in words is "one billion, two hundred forty-two million, four hundred forty-four thousand, three hundred twenty-five".