120115577 has 2 divisors, whose sum is σ = 120115578. Its totient is φ = 120115576.

The previous prime is 120115573. The next prime is 120115621. The reversal of 120115577 is 775511021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85729081 + 34386496 = 9259^2 + 5864^2 .

It is an emirp because it is prime and its reverse (775511021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120115577 - 2² = 120115573 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (120115573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60057788 + 60057789.

It is an arithmetic number, because the mean of its divisors is an integer number (60057789).

Almost surely, 2^120115577 is an apocalyptic number.

It is an amenable number.

120115577 is a deficient number, since it is larger than the sum of its proper divisors (1).

120115577 is an equidigital number, since it uses as much as digits as its factorization.

It is an anagram of its base 8 representation: 120115577 = (712150571)₈.

120115577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2450, while the sum is 29.

The square root of 120115577 is about 10959.7252246578. The cubic root of 120115577 is about 493.4007181613.

Adding to 120115577 its reverse (775511021), we get a palindrome (895626598).

The spelling of 120115577 in words is "one hundred twenty million, one hundred fifteen thousand, five hundred seventy-seven".