120450191 has 2 divisors, whose sum is σ = 120450192. Its totient is φ = 120450190.

The previous prime is 120450179. The next prime is 120450199. The reversal of 120450191 is 191054021.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (191054021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120450191 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120450199) 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, 60225095 + 60225096.

It is an arithmetic number, because the mean of its divisors is an integer number (60225096).

Almost surely, 2^120450191 is an apocalyptic number.

120450191 is a deficient number, since it is larger than the sum of its proper divisors (1).

120450191 is an equidigital number, since it uses as much as digits as its factorization.

120450191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 120450191 is about 10974.9802277726. The cubic root of 120450191 is about 493.8584598352.

The spelling of 120450191 in words is "one hundred twenty million, four hundred fifty thousand, one hundred ninety-one".