2164470123 has 4 divisors (see below), whose sum is σ = 2885960168. Its totient is φ = 1442980080.

The previous prime is 2164470083. The next prime is 2164470149. The reversal of 2164470123 is 3210744612.

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

It is not a de Polignac number, because 2164470123 - 2¹⁶ = 2164404587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2164470173) 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, 360745018 + ... + 360745023.

It is an arithmetic number, because the mean of its divisors is an integer number (721490042).

Almost surely, 2^2164470123 is an apocalyptic number.

2164470123 is a deficient number, since it is larger than the sum of its proper divisors (721490045).

2164470123 is an equidigital number, since it uses as much as digits as its factorization.

2164470123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721490044.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 2164470123 is about 46523.8661656574. The cubic root of 2164470123 is about 1293.5519207027.

The spelling of 2164470123 in words is "two billion, one hundred sixty-four million, four hundred seventy thousand, one hundred twenty-three".