120927217 has 2 divisors, whose sum is σ = 120927218. Its totient is φ = 120927216.

The previous prime is 120927197. The next prime is 120927259. The reversal of 120927217 is 712729021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114083761 + 6843456 = 10681^2 + 2616^2 .

It is an emirp because it is prime and its reverse (712729021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120927217 - 2¹¹ = 120925169 is a prime.

It is a super-2 number, since 2×120927217² = 29246783622730178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120927277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60463608 + 60463609.

It is an arithmetic number, because the mean of its divisors is an integer number (60463609).

Almost surely, 2^120927217 is an apocalyptic number.

It is an amenable number.

120927217 is a deficient number, since it is larger than the sum of its proper divisors (1).

120927217 is an equidigital number, since it uses as much as digits as its factorization.

120927217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 120927217 is about 10996.6911841699. The cubic root of 120927217 is about 494.5095533369.

The spelling of 120927217 in words is "one hundred twenty million, nine hundred twenty-seven thousand, two hundred seventeen".