2145015000 has 160 divisors (see below), whose sum is σ = 7446054000. Its totient is φ = 571968000.

The previous prime is 2145014987. The next prime is 2145015011. The reversal of 2145015000 is 5105412.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 127056 + ... + 142944.

Almost surely, 2^2145015000 is an apocalyptic number.

2145015000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2145015000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3723027000).

2145015000 is an abundant number, since it is smaller than the sum of its proper divisors (5301039000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2145015000 is a wasteful number, since it uses less digits than its factorization.

2145015000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15924 (or 15899 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 2145015000 is about 46314.3066449234. The cubic root of 2145015000 is about 1289.6645964145.

The spelling of 2145015000 in words is "two billion, one hundred forty-five million, fifteen thousand".