2150019999 has 6 divisors (see below), whose sum is σ = 3105584456. Its totient is φ = 1433346660.

The previous prime is 2150019961. The next prime is 2150020001. The reversal of 2150019999 is 9999100512.

It is not a de Polignac number, because 2150019999 - 2¹³ = 2150011807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150019929) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119445547 + ... + 119445564.

Almost surely, 2^2150019999 is an apocalyptic number.

2150019999 is a deficient number, since it is larger than the sum of its proper divisors (955564457).

2150019999 is a wasteful number, since it uses less digits than its factorization.

2150019999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238891117 (or 238891114 counting only the distinct ones).

The product of its (nonzero) digits is 65610, while the sum is 45.

The square root of 2150019999 is about 46368.3081317402. The cubic root of 2150019999 is about 1290.6668825170. Note that the first 3 decimals are identical.

The spelling of 2150019999 in words is "two billion, one hundred fifty million, nineteen thousand, nine hundred ninety-nine".