2153406343 has 4 divisors (see below), whose sum is σ = 2349170568. Its totient is φ = 1957642120.

The previous prime is 2153406329. The next prime is 2153406347. The reversal of 2153406343 is 3436043512.

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

It is a cyclic number.

It is not a de Polignac number, because 2153406343 - 2¹³ = 2153398151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153406347) 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, 97882096 + ... + 97882117.

It is an arithmetic number, because the mean of its divisors is an integer number (587292642).

Almost surely, 2^2153406343 is an apocalyptic number.

2153406343 is a deficient number, since it is larger than the sum of its proper divisors (195764225).

2153406343 is a wasteful number, since it uses less digits than its factorization.

2153406343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195764224.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 2153406343 is about 46404.8094813458. The cubic root of 2153406343 is about 1291.3441396947.

Adding to 2153406343 its reverse (3436043512), we get a palindrome (5589449855).

The spelling of 2153406343 in words is "two billion, one hundred fifty-three million, four hundred six thousand, three hundred forty-three".