120135517 has 2 divisors, whose sum is σ = 120135518. Its totient is φ = 120135516.

The previous prime is 120135511. The next prime is 120135527. The reversal of 120135517 is 715531021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65464281 + 54671236 = 8091^2 + 7394^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120135517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120135491 and 120135500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120135511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60067758 + 60067759.

It is an arithmetic number, because the mean of its divisors is an integer number (60067759).

Almost surely, 2^120135517 is an apocalyptic number.

It is an amenable number.

120135517 is a deficient number, since it is larger than the sum of its proper divisors (1).

120135517 is an equidigital number, since it uses as much as digits as its factorization.

120135517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 120135517 is about 10960.6348812466. The cubic root of 120135517 is about 493.4280192719.

Adding to 120135517 its reverse (715531021), we get a palindrome (835666538).

The spelling of 120135517 in words is "one hundred twenty million, one hundred thirty-five thousand, five hundred seventeen".