1251341144325 has 18 divisors (see below), whose sum is σ = 2241291027794. Its totient is φ = 667381943520.

The previous prime is 1251341144323. The next prime is 1251341144327. The reversal of 1251341144325 is 5234411431521.

1251341144325 is a `hidden beast` number, since 1 + 2 + 513 + 4 + 114 + 4 + 3 + 25 = 666.

It is an interprime number because it is at equal distance from previous prime (1251341144323) and next prime (1251341144327).

It can be written as a sum of positive squares in 3 ways, for example, as 140294444481 + 1111046699844 = 374559^2 + 1054062^2 .

It is not a de Polignac number, because 1251341144325 - 2¹ = 1251341144323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1251341144325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251341144323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2780757874 + ... + 2780758323.

Almost surely, 2^{1251341144325} is an apocalyptic number.

1251341144325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1251341144325 is a deficient number, since it is larger than the sum of its proper divisors (989949883469).

1251341144325 is a wasteful number, since it uses less digits than its factorization.

1251341144325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5561516213 (or 5561516205 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

Adding to 1251341144325 its reverse (5234411431521), we get a palindrome (6485752575846).

The spelling of 1251341144325 in words is "one trillion, two hundred fifty-one billion, three hundred forty-one million, one hundred forty-four thousand, three hundred twenty-five".