2145505015 has 8 divisors (see below), whose sum is σ = 2575163808. Its totient is φ = 1716032160.

The previous prime is 2145505007. The next prime is 2145505091. The reversal of 2145505015 is 5105055412.

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

It is not a de Polignac number, because 2145505015 - 2³ = 2145505007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 19692 + ... + 68401.

It is an arithmetic number, because the mean of its divisors is an integer number (321895476).

Almost surely, 2^2145505015 is an apocalyptic number.

2145505015 is a deficient number, since it is larger than the sum of its proper divisors (429658793).

2145505015 is an equidigital number, since it uses as much as digits as its factorization.

2145505015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92969.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 2145505015 is about 46319.5964468604. The cubic root of 2145505015 is about 1289.7627941553.

The spelling of 2145505015 in words is "two billion, one hundred forty-five million, five hundred five thousand, fifteen".