120355247 has 2 divisors, whose sum is σ = 120355248. Its totient is φ = 120355246.

The previous prime is 120355231. The next prime is 120355259. The reversal of 120355247 is 742553021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120355247 - 2⁴ = 120355231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120355267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60177623 + 60177624.

It is an arithmetic number, because the mean of its divisors is an integer number (60177624).

Almost surely, 2^120355247 is an apocalyptic number.

120355247 is a deficient number, since it is larger than the sum of its proper divisors (1).

120355247 is an equidigital number, since it uses as much as digits as its factorization.

120355247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 120355247 is about 10970.6539002924. The cubic root of 120355247 is about 493.7286655953.

The spelling of 120355247 in words is "one hundred twenty million, three hundred fifty-five thousand, two hundred forty-seven".