120515 has 4 divisors (see below), whose sum is σ = 144624. Its totient is φ = 96408.

The previous prime is 120511. The next prime is 120539. The reversal of 120515 is 515021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120515 - 2² = 120511 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120515.

It is not an unprimeable number, because it can be changed into a prime (120511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12047 + ... + 12056.

It is an arithmetic number, because the mean of its divisors is an integer number (36156).

2¹²⁰⁵¹⁵ is an apocalyptic number.

120515 is a deficient number, since it is larger than the sum of its proper divisors (24109).

120515 is an equidigital number, since it uses as much as digits as its factorization.

120515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24108.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 120515 is about 347.1527041519. The cubic root of 120515 is about 49.3947018527.

Adding to 120515 its reverse (515021), we get a palindrome (635536).

The spelling of 120515 in words is "one hundred twenty thousand, five hundred fifteen".