1355137540717 has 4 divisors (see below), whose sum is σ = 1355139872380. Its totient is φ = 1355135209056.

The previous prime is 1355137540697. The next prime is 1355137540777. The reversal of 1355137540717 is 7170457315531.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 532390581801 + 822746958916 = 729651^2 + 907054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1355137540717 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 (1355137540777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487759 + ... + 1717027.

It is an arithmetic number, because the mean of its divisors is an integer number (338784968095).

Almost surely, 2^{1355137540717} is an apocalyptic number.

It is an amenable number.

1355137540717 is a deficient number, since it is larger than the sum of its proper divisors (2331663).

1355137540717 is a wasteful number, since it uses less digits than its factorization.

1355137540717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331662.

The product of its (nonzero) digits is 1543500, while the sum is 49.

The spelling of 1355137540717 in words is "one trillion, three hundred fifty-five billion, one hundred thirty-seven million, five hundred forty thousand, seven hundred seventeen".