1712218117 has 4 divisors (see below), whose sum is σ = 1802334880. Its totient is φ = 1622101356.

The previous prime is 1712218103. The next prime is 1712218127. The reversal of 1712218117 is 7118122171.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1712218117 - 2¹¹ = 1712216069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1712218127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45058353 + ... + 45058390.

It is an arithmetic number, because the mean of its divisors is an integer number (450583720).

Almost surely, 2^1712218117 is an apocalyptic number.

It is an amenable number.

1712218117 is a deficient number, since it is larger than the sum of its proper divisors (90116763).

1712218117 is an equidigital number, since it uses as much as digits as its factorization.

1712218117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90116762.

The product of its digits is 1568, while the sum is 31.

The square root of 1712218117 is about 41378.9574179921. The cubic root of 1712218117 is about 1196.3356079248.

The spelling of 1712218117 in words is "one billion, seven hundred twelve million, two hundred eighteen thousand, one hundred seventeen".