120946561 has 2 divisors, whose sum is σ = 120946562. Its totient is φ = 120946560.

The previous prime is 120946543. The next prime is 120946589. The reversal of 120946561 is 165649021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110986225 + 9960336 = 10535^2 + 3156^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120946561 is a prime.

It is not a weakly prime, because it can be changed into another prime (120946061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60473280 + 60473281.

It is an arithmetic number, because the mean of its divisors is an integer number (60473281).

Almost surely, 2^120946561 is an apocalyptic number.

It is an amenable number.

120946561 is a deficient number, since it is larger than the sum of its proper divisors (1).

120946561 is an equidigital number, since it uses as much as digits as its factorization.

120946561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 120946561 is about 10997.5706862925. The cubic root of 120946561 is about 494.5359198380.

The spelling of 120946561 in words is "one hundred twenty million, nine hundred forty-six thousand, five hundred sixty-one".