120617239 has 2 divisors, whose sum is σ = 120617240. Its totient is φ = 120617238.

The previous prime is 120617213. The next prime is 120617281. The reversal of 120617239 is 932716021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120617239 - 2¹¹ = 120615191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120617239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120617209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60308619 + 60308620.

It is an arithmetic number, because the mean of its divisors is an integer number (60308620).

Almost surely, 2^120617239 is an apocalyptic number.

120617239 is a deficient number, since it is larger than the sum of its proper divisors (1).

120617239 is an equidigital number, since it uses as much as digits as its factorization.

120617239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 120617239 is about 10982.5879919079. The cubic root of 120617239 is about 494.0866591675.

The spelling of 120617239 in words is "one hundred twenty million, six hundred seventeen thousand, two hundred thirty-nine".