121743079 has 2 divisors, whose sum is σ = 121743080. Its totient is φ = 121743078.

The previous prime is 121743053. The next prime is 121743101. The reversal of 121743079 is 970347121.

It is a strong prime.

It is an emirp because it is prime and its reverse (970347121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121743079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121743379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60871539 + 60871540.

It is an arithmetic number, because the mean of its divisors is an integer number (60871540).

Almost surely, 2^121743079 is an apocalyptic number.

121743079 is a deficient number, since it is larger than the sum of its proper divisors (1).

121743079 is an equidigital number, since it uses as much as digits as its factorization.

121743079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 121743079 is about 11033.7246204534. The cubic root of 121743079 is about 495.6191673786.

The spelling of 121743079 in words is "one hundred twenty-one million, seven hundred forty-three thousand, seventy-nine".