2165018147 has 8 divisors (see below), whose sum is σ = 2233794240. Its totient is φ = 2097276480.

The previous prime is 2165018131. The next prime is 2165018179. The reversal of 2165018147 is 7418105612.

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

It is a cyclic number.

It is not a de Polignac number, because 2165018147 - 2⁴ = 2165018131 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2165018117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254354 + ... + 262727.

It is an arithmetic number, because the mean of its divisors is an integer number (279224280).

Almost surely, 2^2165018147 is an apocalyptic number.

2165018147 is a deficient number, since it is larger than the sum of its proper divisors (68776093).

2165018147 is an equidigital number, since it uses as much as digits as its factorization.

2165018147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517213.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 2165018147 is about 46529.7555011844. The cubic root of 2165018147 is about 1293.6610833210.

The spelling of 2165018147 in words is "two billion, one hundred sixty-five million, eighteen thousand, one hundred forty-seven".