1713506021 has 2 divisors, whose sum is σ = 1713506022. Its totient is φ = 1713506020.

The previous prime is 1713505993. The next prime is 1713506023. The reversal of 1713506021 is 1206053171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1318053025 + 395452996 = 36305^2 + 19886^2 .

It is a cyclic number.

It is not a de Polignac number, because 1713506021 - 2¹⁰ = 1713504997 is a prime.

It is a super-2 number, since 2×1713506021² = 5872205768006504882, which contains 22 as substring.

Together with 1713506023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1713506023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 856753010 + 856753011.

It is an arithmetic number, because the mean of its divisors is an integer number (856753011).

Almost surely, 2^1713506021 is an apocalyptic number.

It is an amenable number.

1713506021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1713506021 is an equidigital number, since it uses as much as digits as its factorization.

1713506021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1713506021 is about 41394.5167987259. The cubic root of 1713506021 is about 1196.6354877995.

Adding to 1713506021 its reverse (1206053171), we get a palindrome (2919559192).

The spelling of 1713506021 in words is "one billion, seven hundred thirteen million, five hundred six thousand, twenty-one".