121716743 has 2 divisors, whose sum is σ = 121716744. Its totient is φ = 121716742.

The previous prime is 121716737. The next prime is 121716797. The reversal of 121716743 is 347617121.

It is a weak prime.

It is an emirp because it is prime and its reverse (347617121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121716743 - 2⁸ = 121716487 is a prime.

It is equal to p_6933812 and since 121716743 and 6933812 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121712743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60858371 + 60858372.

It is an arithmetic number, because the mean of its divisors is an integer number (60858372).

Almost surely, 2^121716743 is an apocalyptic number.

121716743 is a deficient number, since it is larger than the sum of its proper divisors (1).

121716743 is an equidigital number, since it uses as much as digits as its factorization.

121716743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7056, while the sum is 32.

The square root of 121716743 is about 11032.5311239081. The cubic root of 121716743 is about 495.5834266262.

The spelling of 121716743 in words is "one hundred twenty-one million, seven hundred sixteen thousand, seven hundred forty-three".