120247919 has 16 divisors (see below), whose sum is σ = 139255200. Its totient is φ = 102620160.

The previous prime is 120247901. The next prime is 120247931. The reversal of 120247919 is 919742021.

It is not a de Polignac number, because 120247919 - 2⁸ = 120247663 is a prime.

It is a super-2 number, since 2×120247919² = 28919124047661122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120247969) 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 15 ways as a sum of consecutive naturals, for example, 114107 + ... + 115155.

It is an arithmetic number, because the mean of its divisors is an integer number (8703450).

Almost surely, 2^120247919 is an apocalyptic number.

120247919 is a deficient number, since it is larger than the sum of its proper divisors (19007281).

120247919 is a wasteful number, since it uses less digits than its factorization.

120247919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 120247919 is about 10965.7612138875. The cubic root of 120247919 is about 493.5818594497.

The spelling of 120247919 in words is "one hundred twenty million, two hundred forty-seven thousand, nine hundred nineteen".