17131144997 has 8 divisors (see below), whose sum is σ = 17308269432. Its totient is φ = 16954168000.

The previous prime is 17131144981. The next prime is 17131145027. The reversal of 17131144997 is 79944113171.

It is a Cunningham number, because it is equal to 130886²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 14394436 + 17116750561 = 3794^2 + 130831^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 17131144997 - 2⁴ = 17131144981 is a prime.

It is a super-2 number, since 2×17131144997² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17131144957) 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, 204863 + ... + 276099.

It is an arithmetic number, because the mean of its divisors is an integer number (2163533679).

Almost surely, 2^17131144997 is an apocalyptic number.

It is an amenable number.

17131144997 is a deficient number, since it is larger than the sum of its proper divisors (177124435).

17131144997 is a wasteful number, since it uses less digits than its factorization.

17131144997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73719.

The product of its digits is 190512, while the sum is 47.

The spelling of 17131144997 in words is "seventeen billion, one hundred thirty-one million, one hundred forty-four thousand, nine hundred ninety-seven".