120120715 has 32 divisors (see below), whose sum is σ = 173327616. Its totient is φ = 78744960.

The previous prime is 120120713. The next prime is 120120727. The reversal of 120120715 is 517021021.

It is not a de Polignac number, because 120120715 - 2¹ = 120120713 is a prime.

It is a super-2 number, since 2×120120715² = 28857972344222450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120120692 and 120120701.

It is not an unprimeable number, because it can be changed into a prime (120120713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28792 + ... + 32698.

It is an arithmetic number, because the mean of its divisors is an integer number (5416488).

Almost surely, 2^120120715 is an apocalyptic number.

120120715 is a deficient number, since it is larger than the sum of its proper divisors (53206901).

120120715 is a wasteful number, since it uses less digits than its factorization.

120120715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979.

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

The square root of 120120715 is about 10959.9596258380. The cubic root of 120120715 is about 493.4077532098.

Adding to 120120715 its reverse (517021021), we get a palindrome (637141736).

The spelling of 120120715 in words is "one hundred twenty million, one hundred twenty thousand, seven hundred fifteen".