1251542144313 has 24 divisors (see below), whose sum is σ = 1837552458560. Its totient is φ = 820623713760.

The previous prime is 1251542144291. The next prime is 1251542144317. The reversal of 1251542144313 is 3134412451521.

1251542144313 is a `hidden beast` number, since 1 + 2 + 5 + 1 + 5 + 4 + 214 + 431 + 3 = 666.

It is not a de Polignac number, because 1251542144313 - 2¹² = 1251542140217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1251542144317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8236020 + ... + 8386602.

Almost surely, 2^{1251542144313} is an apocalyptic number.

It is an amenable number.

1251542144313 is a deficient number, since it is larger than the sum of its proper divisors (586010314247).

1251542144313 is a wasteful number, since it uses less digits than its factorization.

1251542144313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165789 (or 165786 counting only the distinct ones).

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

Adding to 1251542144313 its reverse (3134412451521), we get a palindrome (4385954595834).

The spelling of 1251542144313 in words is "one trillion, two hundred fifty-one billion, five hundred forty-two million, one hundred forty-four thousand, three hundred thirteen".