120455287 has 2 divisors, whose sum is σ = 120455288. Its totient is φ = 120455286.

The previous prime is 120455261. The next prime is 120455303. The reversal of 120455287 is 782554021.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (782554021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120455287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120455087) 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, 60227643 + 60227644.

It is an arithmetic number, because the mean of its divisors is an integer number (60227644).

Almost surely, 2^120455287 is an apocalyptic number.

120455287 is a deficient number, since it is larger than the sum of its proper divisors (1).

120455287 is an equidigital number, since it uses as much as digits as its factorization.

120455287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 120455287 is about 10975.2123897444. The cubic root of 120455287 is about 493.8654244491.

The spelling of 120455287 in words is "one hundred twenty million, four hundred fifty-five thousand, two hundred eighty-seven".