121061651 has 2 divisors, whose sum is σ = 121061652. Its totient is φ = 121061650.

The previous prime is 121061623. The next prime is 121061657. The reversal of 121061651 is 156160121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121061651 - 2⁶ = 121061587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121061657) 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, 60530825 + 60530826.

It is an arithmetic number, because the mean of its divisors is an integer number (60530826).

Almost surely, 2^121061651 is an apocalyptic number.

121061651 is a deficient number, since it is larger than the sum of its proper divisors (1).

121061651 is an equidigital number, since it uses as much as digits as its factorization.

121061651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 121061651 is about 11002.8019613188. The cubic root of 121061651 is about 494.6927331576.

The spelling of 121061651 in words is "one hundred twenty-one million, sixty-one thousand, six hundred fifty-one".