2151799159 has 4 divisors (see below), whose sum is σ = 2225999160. Its totient is φ = 2077599160.

The previous prime is 2151799147. The next prime is 2151799183. The reversal of 2151799159 is 9519971512.

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 2151799159 - 2⁷ = 2151799031 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 (2151799189) 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, 37099957 + ... + 37100014.

It is an arithmetic number, because the mean of its divisors is an integer number (556499790).

Almost surely, 2^2151799159 is an apocalyptic number.

2151799159 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2151799159 is a deficient number, since it is larger than the sum of its proper divisors (74200001).

2151799159 is an equidigital number, since it uses as much as digits as its factorization.

2151799159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74200000.

The product of its digits is 255150, while the sum is 49.

The square root of 2151799159 is about 46387.4892508745. The cubic root of 2151799159 is about 1291.0227970014.

The spelling of 2151799159 in words is "two billion, one hundred fifty-one million, seven hundred ninety-nine thousand, one hundred fifty-nine".