120706661 has 2 divisors, whose sum is σ = 120706662. Its totient is φ = 120706660.

The previous prime is 120706631. The next prime is 120706679. The reversal of 120706661 is 166607021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120450625 + 256036 = 10975^2 + 506^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120706661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120706631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60353330 + 60353331.

It is an arithmetic number, because the mean of its divisors is an integer number (60353331).

Almost surely, 2^120706661 is an apocalyptic number.

It is an amenable number.

120706661 is a deficient number, since it is larger than the sum of its proper divisors (1).

120706661 is an equidigital number, since it uses as much as digits as its factorization.

120706661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 120706661 is about 10986.6583181603. The cubic root of 120706661 is about 494.2087293449.

The spelling of 120706661 in words is "one hundred twenty million, seven hundred six thousand, six hundred sixty-one".