120126915 has 16 divisors (see below), whose sum is σ = 213559200. Its totient is φ = 64067616.

The previous prime is 120126883. The next prime is 120126917. The reversal of 120126915 is 519621021.

It is not a de Polignac number, because 120126915 - 2⁵ = 120126883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (120126917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444780 + ... + 445049.

It is an arithmetic number, because the mean of its divisors is an integer number (13347450).

Almost surely, 2^120126915 is an apocalyptic number.

120126915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120126915 is a deficient number, since it is larger than the sum of its proper divisors (93432285).

120126915 is an equidigital number, since it uses as much as digits as its factorization.

120126915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889843 (or 889837 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 120126915 is about 10960.2424699456. The cubic root of 120126915 is about 493.4162421022.

Adding to 120126915 its reverse (519621021), we get a palindrome (639747936).

The spelling of 120126915 in words is "one hundred twenty million, one hundred twenty-six thousand, nine hundred fifteen".