17152371421 has 2 divisors, whose sum is σ = 17152371422. Its totient is φ = 17152371420.

The previous prime is 17152371403. The next prime is 17152371433. The reversal of 17152371421 is 12417325171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10177783225 + 6974588196 = 100885^2 + 83514^2 .

It is a cyclic number.

It is not a de Polignac number, because 17152371421 - 2¹⁷ = 17152240349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17152371491) 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 as a sum of consecutive naturals, namely, 8576185710 + 8576185711.

It is an arithmetic number, because the mean of its divisors is an integer number (8576185711).

Almost surely, 2^17152371421 is an apocalyptic number.

It is an amenable number.

17152371421 is a deficient number, since it is larger than the sum of its proper divisors (1).

17152371421 is an equidigital number, since it uses as much as digits as its factorization.

17152371421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 34.

Adding to 17152371421 its reverse (12417325171), we get a palindrome (29569696592).

The spelling of 17152371421 in words is "seventeen billion, one hundred fifty-two million, three hundred seventy-one thousand, four hundred twenty-one".