17210072125 has 16 divisors (see below), whose sum is σ = 21527840880. Its totient is φ = 13736217600.

The previous prime is 17210072123. The next prime is 17210072141. The reversal of 17210072125 is 52127001271.

It can be written as a sum of positive squares in 8 ways, for example, as 14789235321 + 2420836804 = 121611^2 + 49202^2 .

It is not a de Polignac number, because 17210072125 - 2¹ = 17210072123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17210072093 and 17210072102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17210072123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104860 + ... + 213109.

It is an arithmetic number, because the mean of its divisors is an integer number (1345490055).

Almost surely, 2^17210072125 is an apocalyptic number.

It is an amenable number.

17210072125 is a deficient number, since it is larger than the sum of its proper divisors (4317768755).

17210072125 is an equidigital number, since it uses as much as digits as its factorization.

17210072125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318417 (or 318407 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 28.

Adding to 17210072125 its reverse (52127001271), we get a palindrome (69337073396).

The spelling of 17210072125 in words is "seventeen billion, two hundred ten million, seventy-two thousand, one hundred twenty-five".