120521249 has 2 divisors, whose sum is σ = 120521250. Its totient is φ = 120521248.

The previous prime is 120521221. The next prime is 120521267. The reversal of 120521249 is 942125021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70677649 + 49843600 = 8407^2 + 7060^2 .

It is a cyclic number.

It is not a de Polignac number, because 120521249 - 2²⁰ = 119472673 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (120521209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60260624 + 60260625.

It is an arithmetic number, because the mean of its divisors is an integer number (60260625).

Almost surely, 2^120521249 is an apocalyptic number.

It is an amenable number.

120521249 is a deficient number, since it is larger than the sum of its proper divisors (1).

120521249 is an equidigital number, since it uses as much as digits as its factorization.

120521249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 120521249 is about 10978.2170228139. The cubic root of 120521249 is about 493.9555558370.

The spelling of 120521249 in words is "one hundred twenty million, five hundred twenty-one thousand, two hundred forty-nine".