121714561 has 2 divisors, whose sum is σ = 121714562. Its totient is φ = 121714560.

The previous prime is 121714547. The next prime is 121714591. The reversal of 121714561 is 165417121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84272400 + 37442161 = 9180^2 + 6119^2 .

It is a cyclic number.

It is not a de Polignac number, because 121714561 - 2⁵ = 121714529 is a prime.

It is equal to p_6933700 and since 121714561 and 6933700 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (121714511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60857280 + 60857281.

It is an arithmetic number, because the mean of its divisors is an integer number (60857281).

Almost surely, 2^121714561 is an apocalyptic number.

It is an amenable number.

121714561 is a deficient number, since it is larger than the sum of its proper divisors (1).

121714561 is an equidigital number, since it uses as much as digits as its factorization.

121714561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 28.

The square root of 121714561 is about 11032.4322340996. The cubic root of 121714561 is about 495.5804651889.

The spelling of 121714561 in words is "one hundred twenty-one million, seven hundred fourteen thousand, five hundred sixty-one".