1315740638033 has 4 divisors (see below), whose sum is σ = 1323009923508. Its totient is φ = 1308471352560.

The previous prime is 1315740637979. The next prime is 1315740638071. The reversal of 1315740638033 is 3308360475131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 307218558529 + 1008522079504 = 554273^2 + 1004252^2 .

It is a cyclic number.

It is not a de Polignac number, because 1315740638033 - 2¹⁴ = 1315740621649 is a prime.

It is a super-3 number, since 3×1315740638033³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1315745638033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3634642466 + ... + 3634642827.

It is an arithmetic number, because the mean of its divisors is an integer number (330752480877).

Almost surely, 2^{1315740638033} is an apocalyptic number.

It is an amenable number.

1315740638033 is a deficient number, since it is larger than the sum of its proper divisors (7269285475).

1315740638033 is an equidigital number, since it uses as much as digits as its factorization.

1315740638033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7269285474.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 1315740638033 in words is "one trillion, three hundred fifteen billion, seven hundred forty million, six hundred thirty-eight thousand, thirty-three".