2148489123 has 16 divisors (see below), whose sum is σ = 3125920896. Its totient is φ = 1301762240.

The previous prime is 2148489097. The next prime is 2148489127. The reversal of 2148489123 is 3219848412.

It is a cyclic number.

It is not a de Polignac number, because 2148489123 - 2¹⁶ = 2148423587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2148489127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167836 + ... + 180182.

It is an arithmetic number, because the mean of its divisors is an integer number (195370056).

Almost surely, 2^2148489123 is an apocalyptic number.

2148489123 is a deficient number, since it is larger than the sum of its proper divisors (977431773).

2148489123 is a wasteful number, since it uses less digits than its factorization.

2148489123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17634.

The product of its digits is 110592, while the sum is 42.

The square root of 2148489123 is about 46351.7974085148. The cubic root of 2148489123 is about 1290.3604791509.

The spelling of 2148489123 in words is "two billion, one hundred forty-eight million, four hundred eighty-nine thousand, one hundred twenty-three".