120517091 has 2 divisors, whose sum is σ = 120517092. Its totient is φ = 120517090.

The previous prime is 120517051. The next prime is 120517093. The reversal of 120517091 is 190715021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120517091 is a prime.

Together with 120517093, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120517091.

It is not a weakly prime, because it can be changed into another prime (120517093) 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, 60258545 + 60258546.

It is an arithmetic number, because the mean of its divisors is an integer number (60258546).

Almost surely, 2^120517091 is an apocalyptic number.

120517091 is a deficient number, since it is larger than the sum of its proper divisors (1).

120517091 is an equidigital number, since it uses as much as digits as its factorization.

120517091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 120517091 is about 10978.0276461667. The cubic root of 120517091 is about 493.9498752597.

The spelling of 120517091 in words is "one hundred twenty million, five hundred seventeen thousand, ninety-one".