1717145539201 has 3 divisors (see below), whose sum is σ = 1717146849601. Its totient is φ = 1717144228802.

The previous prime is 1717145539183. The next prime is 1717145539211. The reversal of 1717145539201 is 1029355417171.

It is a happy number.

The square root of 1717145539201 is 1310399.

It is a perfect power (a square), and thus also a powerful number.

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 is not a de Polignac number, because 1717145539201 - 2³¹ = 1714998055553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1717145539211) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 655200 + ... + 1965598.

Almost surely, 2^{1717145539201} is an apocalyptic number.

1717145539201 is the 1310399-th square number.

1717145539201 is the 655200-th centered octagonal number.

It is an amenable number.

1717145539201 is a deficient number, since it is larger than the sum of its proper divisors (1310400).

1717145539201 is an frugal number, since it uses more digits than its factorization.

1717145539201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2620798 (or 1310399 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 46.

The spelling of 1717145539201 in words is "one trillion, seven hundred seventeen billion, one hundred forty-five million, five hundred thirty-nine thousand, two hundred one".