121927501 has 2 divisors, whose sum is σ = 121927502. Its totient is φ = 121927500.

The previous prime is 121927441. The next prime is 121927511. The reversal of 121927501 is 105729121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103428900 + 18498601 = 10170^2 + 4301^2 .

It is a cyclic number.

It is not a de Polignac number, because 121927501 - 2⁷ = 121927373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121927501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121927511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60963750 + 60963751.

It is an arithmetic number, because the mean of its divisors is an integer number (60963751).

Almost surely, 2^121927501 is an apocalyptic number.

It is an amenable number.

121927501 is a deficient number, since it is larger than the sum of its proper divisors (1).

121927501 is an equidigital number, since it uses as much as digits as its factorization.

121927501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 121927501 is about 11042.0786539492. The cubic root of 121927501 is about 495.8693033309.

The spelling of 121927501 in words is "one hundred twenty-one million, nine hundred twenty-seven thousand, five hundred one".