120416521 has 2 divisors, whose sum is σ = 120416522. Its totient is φ = 120416520.

The previous prime is 120416473. The next prime is 120416533. The reversal of 120416521 is 125614021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120012025 + 404496 = 10955^2 + 636^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120416521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120416492 and 120416501.

It is not a weakly prime, because it can be changed into another prime (120416591) 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, 60208260 + 60208261.

It is an arithmetic number, because the mean of its divisors is an integer number (60208261).

Almost surely, 2^120416521 is an apocalyptic number.

It is an amenable number.

120416521 is a deficient number, since it is larger than the sum of its proper divisors (1).

120416521 is an equidigital number, since it uses as much as digits as its factorization.

120416521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 120416521 is about 10973.4461770221. The cubic root of 120416521 is about 493.8124386989.

The spelling of 120416521 in words is "one hundred twenty million, four hundred sixteen thousand, five hundred twenty-one".