1252731348685 has 8 divisors (see below), whose sum is σ = 1503539684856. Its totient is φ = 1002010368000.

The previous prime is 1252731348643. The next prime is 1252731348689. The reversal of 1252731348685 is 5868431372521.

It can be written as a sum of positive squares in 4 ways, for example, as 75031070724 + 1177700277961 = 273918^2 + 1085219^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1252731348685 - 2¹¹ = 1252731346637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252731348689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21807316 + ... + 21864685.

It is an arithmetic number, because the mean of its divisors is an integer number (187942460607).

Almost surely, 2^{1252731348685} is an apocalyptic number.

It is an amenable number.

1252731348685 is a deficient number, since it is larger than the sum of its proper divisors (250808336171).

1252731348685 is an equidigital number, since it uses as much as digits as its factorization.

1252731348685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43677743.

The product of its digits is 9676800, while the sum is 55.

The spelling of 1252731348685 in words is "one trillion, two hundred fifty-two billion, seven hundred thirty-one million, three hundred forty-eight thousand, six hundred eighty-five".