2153634123 has 8 divisors (see below), whose sum is σ = 2894123008. Its totient is φ = 1424450664.

The previous prime is 2153634121. The next prime is 2153634127. The reversal of 2153634123 is 3214363512.

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

It is not a de Polignac number, because 2153634123 - 2¹ = 2153634121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2153634121) 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, 2825911 + ... + 2826672.

It is an arithmetic number, because the mean of its divisors is an integer number (361765376).

Almost surely, 2^2153634123 is an apocalyptic number.

2153634123 is a deficient number, since it is larger than the sum of its proper divisors (740488885).

2153634123 is a wasteful number, since it uses less digits than its factorization.

2153634123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5652713.

The product of its digits is 12960, while the sum is 30.

The square root of 2153634123 is about 46407.2636879185. The cubic root of 2153634123 is about 1291.3896694200.

Adding to 2153634123 its reverse (3214363512), we get a palindrome (5367997635).

The spelling of 2153634123 in words is "two billion, one hundred fifty-three million, six hundred thirty-four thousand, one hundred twenty-three".