120397 has 2 divisors, whose sum is σ = 120398. Its totient is φ = 120396.

The previous prime is 120391. The next prime is 120401. The reversal of 120397 is 793021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114921 + 5476 = 339^2 + 74^2 .

It is a cyclic number.

It is not a de Polignac number, because 120397 - 2¹⁵ = 87629 is a prime.

120397 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60198 + 60199.

It is an arithmetic number, because the mean of its divisors is an integer number (60199).

2¹²⁰³⁹⁷ is an apocalyptic number.

It is an amenable number.

120397 is a deficient number, since it is larger than the sum of its proper divisors (1).

120397 is an equidigital number, since it uses as much as digits as its factorization.

120397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 120397 is about 346.9827085029. The cubic root of 120397 is about 49.3785752899.

The spelling of 120397 in words is "one hundred twenty thousand, three hundred ninety-seven".