12120715 has 8 divisors (see below), whose sum is σ = 14582880. Its totient is φ = 9671232.

The previous prime is 12120709. The next prime is 12120737. The reversal of 12120715 is 51702121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12120715 - 2⁵ = 12120683 is a prime.

It is a super-2 number, since 2×12120715² = 293823464222450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12120692 and 12120701.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 919 + ... + 5008.

It is an arithmetic number, because the mean of its divisors is an integer number (1822860).

Almost surely, 2^12120715 is an apocalyptic number.

12120715 is a deficient number, since it is larger than the sum of its proper divisors (2462165).

12120715 is an equidigital number, since it uses as much as digits as its factorization.

12120715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6341.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 12120715 is about 3481.4817247833. The cubic root of 12120715 is about 229.7079784755.

Adding to 12120715 its reverse (51702121), we get a palindrome (63822836).

The spelling of 12120715 in words is "twelve million, one hundred twenty thousand, seven hundred fifteen".