2173123452 has 12 divisors (see below), whose sum is σ = 5070621416. Its totient is φ = 724374480.

The previous prime is 2173123441. The next prime is 2173123457. The reversal of 2173123452 is 2543213712.

2173123452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173123457) 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, 90546799 + ... + 90546822.

Almost surely, 2^2173123452 is an apocalyptic number.

It is an amenable number.

2173123452 is an abundant number, since it is smaller than the sum of its proper divisors (2897497964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2173123452 is a wasteful number, since it uses less digits than its factorization.

2173123452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181093628 (or 181093626 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 2173123452 is about 46616.7722177330. The cubic root of 2173123452 is about 1295.2734577526.

The spelling of 2173123452 in words is "two billion, one hundred seventy-three million, one hundred twenty-three thousand, four hundred fifty-two".