2145185115 has 8 divisors (see below), whose sum is σ = 3432296208. Its totient is φ = 1144098720.

The previous prime is 2145185083. The next prime is 2145185117. The reversal of 2145185115 is 5115815412.

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

It is not a de Polignac number, because 2145185115 - 2⁵ = 2145185083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2145185117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71506156 + ... + 71506185.

It is an arithmetic number, because the mean of its divisors is an integer number (429037026).

Almost surely, 2^2145185115 is an apocalyptic number.

2145185115 is a deficient number, since it is larger than the sum of its proper divisors (1287111093).

2145185115 is a wasteful number, since it uses less digits than its factorization.

2145185115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143012349.

The product of its digits is 8000, while the sum is 33.

The square root of 2145185115 is about 46316.1431360600. The cubic root of 2145185115 is about 1289.6986887158.

The spelling of 2145185115 in words is "two billion, one hundred forty-five million, one hundred eighty-five thousand, one hundred fifteen".