121746629 has 2 divisors, whose sum is σ = 121746630. Its totient is φ = 121746628.

The previous prime is 121746617. The next prime is 121746649. The reversal of 121746629 is 926647121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121506529 + 240100 = 11023^2 + 490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121746629 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121746592 and 121746601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121746649) 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, 60873314 + 60873315.

It is an arithmetic number, because the mean of its divisors is an integer number (60873315).

Almost surely, 2^121746629 is an apocalyptic number.

It is an amenable number.

121746629 is a deficient number, since it is larger than the sum of its proper divisors (1).

121746629 is an equidigital number, since it uses as much as digits as its factorization.

121746629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 121746629 is about 11033.8854897085. The cubic root of 121746629 is about 495.6239847118.

The spelling of 121746629 in words is "one hundred twenty-one million, seven hundred forty-six thousand, six hundred twenty-nine".