120190915 has 8 divisors (see below), whose sum is σ = 155323728. Its totient is φ = 88756320.

The previous prime is 120190913. The next prime is 120190927. The reversal of 120190915 is 519091021.

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

It is not a de Polignac number, because 120190915 - 2¹ = 120190913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120190913) 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, 924481 + ... + 924610.

It is an arithmetic number, because the mean of its divisors is an integer number (19415466).

Almost surely, 2^120190915 is an apocalyptic number.

120190915 is a deficient number, since it is larger than the sum of its proper divisors (35132813).

120190915 is a wasteful number, since it uses less digits than its factorization.

120190915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849109.

The product of its (nonzero) digits is 810, while the sum is 28.

The square root of 120190915 is about 10963.1617246121. The cubic root of 120190915 is about 493.5038523131.

The spelling of 120190915 in words is "one hundred twenty million, one hundred ninety thousand, nine hundred fifteen".