2150509195 has 4 divisors (see below), whose sum is σ = 2580611040. Its totient is φ = 1720407352.

The previous prime is 2150509187. The next prime is 2150509199. The reversal of 2150509195 is 5919050512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2150509195 - 2³ = 2150509187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2150509199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215050915 + ... + 215050924.

It is an arithmetic number, because the mean of its divisors is an integer number (645152760).

Almost surely, 2^2150509195 is an apocalyptic number.

2150509195 is a deficient number, since it is larger than the sum of its proper divisors (430101845).

2150509195 is an equidigital number, since it uses as much as digits as its factorization.

2150509195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430101844.

The product of its (nonzero) digits is 20250, while the sum is 37.

The square root of 2150509195 is about 46373.5829433094. The cubic root of 2150509195 is about 1290.7647639624.

The spelling of 2150509195 in words is "two billion, one hundred fifty million, five hundred nine thousand, one hundred ninety-five".