120388787 has 8 divisors (see below), whose sum is σ = 125035200. Its totient is φ = 115815744.

The previous prime is 120388783. The next prime is 120388799. The reversal of 120388787 is 787883021.

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 120388787 - 2² = 120388783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120388783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14987 + ... + 21572.

It is an arithmetic number, because the mean of its divisors is an integer number (15629400).

Almost surely, 2^120388787 is an apocalyptic number.

120388787 is a deficient number, since it is larger than the sum of its proper divisors (4646413).

120388787 is an equidigital number, since it uses as much as digits as its factorization.

120388787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36685.

The product of its (nonzero) digits is 150528, while the sum is 44.

The square root of 120388787 is about 10972.1824173680. The cubic root of 120388787 is about 493.7745246164.

The spelling of 120388787 in words is "one hundred twenty million, three hundred eighty-eight thousand, seven hundred eighty-seven".